ASTM E2517-21

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2517 − 13 E2517 − 21
Standard Specification for
Cargo Bed Cover, Type III (M35A2, 2 ⁄2 Ton Cargo Truck/
M1078, 2 ⁄2 Ton Lightweight Medium Tactical Vehicle (LMTV)/
M1082, 2 ⁄2 Ton LMTV Trailer)
This standard is issued under the fixed designation E2517; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers the general requirements for the Type III Cargo Bed Cover (CBC). The Type III CBC is a removable
general purpose rigid wall enclosure that is mounted on any of the following model 2.5 ton cargo trucks (1) the M35A2
Lightweight Medium Tactical Vehicle (LMTV) and (2) the M1078 LMTV. It can also be mounted on the M1082 LMTV Trailer.
The CBC provides environmental protection and security for mission equipment and items of general transport.
1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this The
values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered
standard.
1.3 The following safety hazards caveat pertains only to the test required portion, Section 45, of this specification: This standard
does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the applicability of
regulatory requirements prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
E631 Terminology of Building Constructions
E1749 Terminology Relating to Rigid Wall Relocatable Shelters
E1925 Specification for Engineering and Design Criteria for Rigid Wall Relocatable Structures
F501 Test Method for Aerospace Materials Response to Flame, with Vertical Test Specimen (for Aerospace Vehicles Standard
Conditions) (Withdrawn 1998)
2.2 Federal Standards:
FED-STD-595 Colors Used in Government Procurement
This specification is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.53 on Materials
and Processes for Durable Rigidwall Relocatable Structures.
Current edition approved Oct. 1, 2013Feb. 1, 2021. Published January 2014February 2021. Originally approved in 2006. Last previous edition approved in 20112013 as
E2517 – 11.E2517 – 13. DOI: 10.1520/E2517-13.10.1520/E2517-21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
Available from DLA Document Services, Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, http://quicksearch.dla.mil/.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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2.3 Military Standards:
MIL-C-46168 Coating, Aliphatic Polyurethane, Chemical Agent Resistant
MIL-CDTL-53039 Coating, Aliphatic Polyurethane, Single Component, Chemical Agent Resistant
MIL-CDTL-53072 Chemical Agent Resistant Coating (CARC) System Application Procedures and Quality Control Inspection
MIL-PRF-22750 Coating, Epoxy, High Solids
MIL-STD-209 Slinging and Tiedown Provisions for Lifting and Tying Down Military Equipment
MIL-STD-810 Environmental Test Methods and Engineering Guidelines
MIL-STD-1366 Transportability Criteria
MIL-STD-1472 Design Criteria: Human Engineering
2.4 Military Handbooks:
MIL-HDBK-759 Human Engineering Design
MIL-HDBK-1791 Designing for Internal Aerial Delivery in Fixed Winged Aircraft
2.5 OSHA Documents:
Title 29 CFR 1910 OHSA Permissible Exposure Limits
2.6 ACGIH Documents:
ACGIH Threshold Limit Values
3. Terminology
3.1 Definitions:
3.1.1 For definitions of general terms related to building construction used in this specification, refer to Terminology E631, and
for general terms related to rigid wall relocatable shelters, refer to Terminology E1749.
4. General Requirements
4.1 First Article—When specified (see 6.27.2), a sample shall be subjected to first article inspection in accordance with 4.1.15.1.1.
A first article is defined as a pre-production or an initial production sample consisting of one or more of each type of completed
CBC.
4.2 Conformance—Items furnished under this specification shall be subjected to conformance inspection in accordance with
4.1.25.1.2.
4.3 Operating Requirements—Unless otherwise specified, the Type III CBC shall meet the following operating requirements in
both the height extended and height retracted configurations.
4.3.1 Configurations—The Type III CBC shall have two configurations, height extended and height retracted. The height extended
configuration is the normal operating configuration for the CBC and provides for maximum usable volume. The height retracted
configuration provides less usable volume but is capable of being loaded on the C-130, and C-141 Military Airlift Command
(MAC) fixed wing aircraft. Unless otherwise specified, the CBC shall meet all the requirements of this specification sheet in both
the height extended and height retracted configurations.
4.3.2 Height Adjustment Device—In both its payloaded (see 3.3.84.3.8) and non-payloaded configurations the Type III CBC shall
be capable of being manually extended from its retracted configuration and vise versa by two soldiers in 20 min using only the
tools of the Basic Issue Items (BII) and the Additional Authorization List (AAL) as described in the carrier’s Operator’s Manual,
and tools supplied with the CBC. Any hardware or special tools required for extending/retracting the CBC shall be provided as
part of the CBC. Additional materials handling equipment shall not be required. The CBC shall be capable of multiple
extension/retraction cycles, in accordance with its manual, without damage or degradation to either the CBC, its carrier, or its
height adjustment devise.
4.3.3 CBC Service Life, Reliability and Maintainability—The service life for the CBC shall be at least 15 years. The mean time
to repair at the organizational and intermediate level shall not exceed 4 h at the 90th percentile. Gaskets, seals, flaps, and other
materials shall be fixed to the CBC and shall be replaceable.
4.3.4 Personnel Hazards:
Available from Occupational Safety and Health Administration (OSHA), 200 Constitution Ave., NW, Washington, DC 20210, http://www.osha.gov.
Available from American Conference of Governmental Industrial Hygienists, Inc. (ACGIH), 1330 Kemper Meadow Dr., Cincinnati, OH 45240, http://www.acgih.org.
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4.3.4.1 Mechanical—The CBC shall conform to regulatory and consensus design safety standards, unless military applications
require more stringent limits, and reflect applicable system and personnel safety factors. The CBC shall provide personnel
maximum access and safety while installing, operating, and maintaining the equipment.
4.3.4.2 Edge Rounding—All exposed edges and corners shall be rounded. Sharp edges and corners that can present a personnel
safety hazard or caused equipment damage during operation and maintenance shall be rounded or suitably protected.
4.3.5 Toxicity:
4.3.5.1 Materials—Certain chemicals have been identified in the Title 29 CFR 1910, as cancer-producing substances
(carcinogens). Materials used in the CBC shall not contain these chemicals. Consideration of the human toxicity of a substance
should be given prior to material selection.
4.3.5.2 Gases or Vapors—The materials, as installed in the equipment and under service conditions specified in the equipment
specification, shall not liberate noxious odors, toxic or corrosive gases, or vapors that would be detrimental to the health of
personnel.
4.3.6 Vents—The CBC shall include two vents for fresh air ventilation. The vents shall be located to facilitate fresh air flow
through the cargo area. The vents shall prevent intrusion of driven rain and have provisions for blackout. Vents shall be capable
of providing ventilation when the vehicle is both stationary and on the move. Vents requiring operation shall be capable of being
operated manually. The interior surface of the door shall have a warning in at least 1 ⁄2 in. high letters contrasting the color of the
door. The warning shall say “Warning—Sufffocation hazard, door must remain open while occupied.” This requirement shall apply
to the Type III CBCs in the height extended configuration only.
4.3.7 Roof Loads—The CBC roof shall be capable of supporting, without structural damage, degradation or permanent
deformation: (1) a uniformly distributed load of 40 lb ⁄ft over the entire surface and (2) a concentrated load of 660 lb over a
1 by 2 ft area applied anywhere on the roof.
4.3.8 Interior Payload Provisions—The CBC shall be capable of accepting threaded fasteners such as rivnuts and inserts for
mounting equipment to the interior of the CBC. The Type III CBC and its Interior Payload Provisions shall be capable of
supporting at least 1100 lb of payload during its stationary, rail transport, ground mobility and crane lifting operation modes
without damage or degradation to either the CBC or its Interior Payload Provisions. The payload shall be attached to the interior
surfaces using Interior Payload Provisions and shall be distributed as follows: 200 lb mounted to each of the four wall surfaces,
or 400 lb mounted to each of the two side wall surfaces, and 300 lb mounted to the ceiling.
4.3.9 Personnel Door Loads:
4.3.9.1 Personnel Door Structure—The personnel door, including its frame(s) and hardware, shall be capable of supporting a 200
lb static load without damage or degradation to either the CBC or its personnel door, frame(s) and hardware. The load shall be
applied parallel to the hinge line, along the door edge opposite the hinge, with the Personnel Door open to 90 degrees. The
personnel door shall operate freely after application of the load.
4.3.9.2 Door Stop—The personnel door, including its frame(s) and hardware, shall withstand a wind gust of 60 mph in any
direction when the door is secured by its door stop.
4.3.10 Surface Impact Resistance—The exterior surface of the CBC’s roof shall be capable of withstanding a blow from a 30 lb
steel cylinder, 3 in. in diameter with a hemispherical end, dropped from a height of 30 in., without structural degradation. All other
exterior wall surfaces shall be capable of withstanding a blow from the same steel cylinder, dropped from a height of 16 in., without
structural degradation.
4.3.11 Tailgate Operation—The CBC, when mounted on its carrier, shall not inhibit operation of the carrier’s tailgate.
4.3.12 Blackout—The CBC/carrier combination, with the personnel door and ports closed, shall not permit a light source from
within to emit detectable amounts of light. This requirement shall apply to the Type III CBC in the height extended configuration
only.
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4.4 Support and Ownership Requirements—Unless otherwise specified, the Type III CBC shall meet the following support and
ownership requirements in both the height extended and height retracted configurations.
4.4.1 Weight—The Type III CBC, including its height adjustment devise, but not its hardware/adapter kit, shall weigh no more than
800 lb.
4.4.2 Personnel Door—The Type III CBC shall be equipped with a vertically hinged single personnel door, centrally located in
the rear wall. The door opening shall be a minimum of 48.00 in. wide by 60.00 in. high in the height extended configuration and
shall be a minimum of 48.00 in. wide by 24.00 in. high in its height retracted configuration. The personnel door shall swing to
the outside. The personnel door’s fully opened position shall be at least 135 degrees from its closed position. A door stop, for
securing the personnel door in its fully opened position, shall be provided. In its closed position the personnel door shall prevent
the intrusion of driven rain and dust and shall provide blackout protection.
4.4.2.1 Door Handle—The personnel door shall be equipped with a door handle that provides positive closure. From either side,
the door handle shall be capable of being moved to its opened or closed position with a maximum force of 30 lb applied to the
door handle. The personnel door shall be capable of being padlocked from the outside securing the CBC from the exterior.
4.4.2.2 Secondary Exit—A secondary exit shall be provided within the personnel door. The secondary exit opening shall be a
minimum of 35.00 in. wide by 30.00 in. high. The secondary exit shall be capable of being opened with a maximum force of 30
lb applied to the release mechanism from inside of the CBC with: (1) the tailgate closed and the personnel door locked (2) the
tailgate closed and the personnel door unlocked and (3) the tailgate open and the personnel door locked. With the personnel door
locked, the secondary exit shall not be capable of being opened from outside the CBC. The secondary exit shall provide
unobstructed egress for military personnel. This requirement shall apply to the Type III CBC in the height extended configuration
only.
4.4.3 Ladder—A ladder shall be provided to allow military personnel to safely enter and exit the CBC/carrier combination utilizing
the CBC’s Personnel Door. The ladder shall be capable of supporting at least 400 lb applied to any individual step without damage
or degradation to either the CBC, carrier or ladder. The CBC shall have a stowage location for the ladder capable of securely
retaining the ladder in all transportation modes without impeding any operations of the CBC or its carrier. The M1078 and M1082
carriers applicable to the Type III CBC are equipped with a ladder.
4.4.4 Roof Access Handholds/Footholds—Roof access handholds/footholds shall be provided for safe access from the ground to
and descend from the roof when the CBC is mounted on its carrier. The roof access handholds/footholds shall either be built into
the CBC or attached to the exterior. The roof access handholds/footholds shall be designed such that the CBC/carrier combination
does not: (1) exceed the legal highway size limitations imposed by states and foreign countries and (2) limit any other modes of
transportation (such as, rail, air, ship). The roof access handholds/footholds shall be designed for the 5th percentile female through
the 95th percentile male military personnel. Each roof access handhold/footholds shall be capable of supporting 400 lb without
damage or degradation to either the CBC or the roof access step/handhold.
4.4.5 Power and Signal Entry Ports—Two ports shall be provided in the side walls as forward as practicable to permit the pass
through of power and signal lines into the CBC enclosed area when the CBC is in its height extended configuration. One port shall
be located on the driver’s side and the other port shall be located on the passenger’s side. Each port shall be a minimum of four
in. in diameter and not allow the intrusion of driven rain and dust into the CBC and have provisions for blackout. The power and
signal access ports shall have provisions for blackout.
4.4.6 Transportability—The CBC/carrier combination shall be capable of obtaining transportability approval from the Military
Traffic Management Command Transportability Engineering Agency (MTMCTEA) based on the requirements for transport in the
following modes:
4.4.6.1 Rail—The CBC/carrier combination with payload shall: (1) meet the Gabarit International de Chargement (GIC)
equipment gauge envelope as defined in interface standard MIL-STD-1366, and (2) be capable of withstanding multiple rail
impacts without damage or degradation to either the CBC or its carrier and without damage to the tiedown cables, or blocking or
bracing.
4.4.6.2 Fixed Wing—The CBC/carrier combination shall be transportable in C-130 and larger Air Mobility Command (AMC)
aircraft. The combination shall also be capable of roll-on/roll-off loading at ramp angles of 15 degrees on the C-130 and larger
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AMC aircraft without special handling procedures or equipment. The Type III CBCs shall be capable of roll-on/roll-off loading
on the C-130 and C-141 AMC aircraft in the height retracted configuration only.
4.4.6.3 Helicopter Sling Load (HSL)—The Type III CBC mounted on its carrier, in all its payload configurations, shall be capable
of helicopter sling transport by CH-47 or larger rotary wing aircraft in the dual point configuration without damage or degradation
to either the Type III CBC or the carrier as a result of being flown.
4.4.6.4 Ground Mobility—The CBC/carrier combination shall be capable of meeting the same mission profile and miles as the
carrier when driven over road courses as defined by Perryman, Churchville and Munson courses found at Aberdeen Proving
Ground, Maryland, without damage or degradation to either the CBC or its carrier. The CBC/carrier combination shall meet U.S.
and NATO North Atlantic Treaty Organization (NATO) countries’ highway legal limits.
4.4.6.5 Lifting Provisions—The CBC shall be equipped with lift provisions to enable it, with its payload, to be lifted on and off
its carrier without damage or degradation to either the CBC or its lift provisions. The CBC’s lift provisions shall conform to the
crane lift requirements of interface standard MIL-STD-209.
4.4.7 Finish:
4.4.7.1 Non-Skid Surfaces—All horizontal surfaces of the CBC (such as, interior floor (if applicable) and exterior roof) shall be
non-skid.
4.4.7.2 Interior Color—The color of the interior walls and ceiling of the CBC shall be semi-gloss white (see 6.47.4).
4.4.7.3 Exterior Color—Unless otherwise specified in the contract (see 6.27.2), the exterior color of the CBC shall be in
accordance with a three-color camouflage pattern. The pattern shall be generated by the government and supplied to the contractor
(see 6.4.17.4.1). The interior surface of the personnel door and secondary exit shall match the primary exterior color of the CBC.
4.4.8 Chemical Agent Resistance—All exterior surfaces, except weather seals and gaskets, shall be Chemical Agent Resistant
Coated (CARC) in accordance with MIL-CDTL-53072, using either MIL-C-46168 or MIL-CDTL-53039 chemical agent resistant
coatings. All interior surfaces, except weather seals and gaskets, shall be Chemical Agent Resistant Coated (CARC) in accordance
with MIL-CDTL-53072, using MIL-PRF-22750 chemical agent resistant coating. Weather seals shall be resistant to chemical and
biological agent contamination, decontamination fluids and petroleum products or be replaceable at the unit level.
4.4.9 Special Tools—No special tools or equipment shall be required to mount, dismount or operate the CBC. The Type III CBC
may have a height adjustment devise which includes special tools or equipment (see 3.3.24.3.2).
4.4.10 Mounting—The CBC shall be capable of multiple mounting and dismounting cycles from its carrier, in accordance with
its manual, without damage or degradation to either the CBC, its carrier or its mounting provisions and hardware. These
hardware/adapter kits shall allow the Type III CBCs to mount to their respective carriers, and shall be ordered separately (see
6.27.2). With the CBC mounted to the carrier, the D-rings in the bed of the carrier shall not be covered, nor shall the operation
of the D-ring be limited.
4.4.11 Carrier Interface:
4.4.11.1 Carrier Series—Using applicable adapters (see 3.4.104.4.10) the Type III CBC shall be capable of mounting to, and
1 1
allowing full operation of, the following carriers: M35A2, 2 ⁄2 Ton Cargo Truck, M1078, 2 ⁄2 Ton Lightweight Medium Tactical
Vehicle (LMTV), M1082, 2 ⁄2 Ton LMTV Trailer.
4.4.11.2 Carrier Modifications:
(1) M35A2 Modifications—Installation of the Type III CBC shall utilize the M35A2’s existing mounting regions to the
maximum extent possible. Modifications to the M35A2, such as drilled holes, shall be kept to a minimum. No modifications shall
be made to the vehicle’s frame. Any proposed modification(s) made to the M35A2 must be submitted to the government for
approval prior to incorporation into the design. Only modifications capable of being made in the field with hand tools or small
power tools (such as, installation of rivnuts, drilled or punched holes) shall be considered. Only modifications which permit
multiple mounting and dismounting shall be considered.
(2) M1078 and M1082 Modifications—The Type III CBC shall be capable of being mounted to the M1078 and M1082 using
the existing mounting regions of the carriers. No modifications shall be made to these carriers. The D-rings in the bed of the carrier
shall not be covered, nor shall the operation of the D-ring be limited.
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4.4.11.3 Hardware/Adapter Kits—The CBC shall have provisions to mount it to any of the carriers listed in 3.4.11.14.4.11.1. These
provisions may include separate hardware or adapters for each type carrier. The hardware/adapter kits shall have as much
commonality as practicable. The hardware/adapters kits shall be ordered separately from the CBC. The kits shall not be part of
the CBC weight but shall weigh no more than 200 lb. A ladder meeting the requirements of 3.4.34.4.3 shall be provided for the
M35A2 hardware/adapter kit only. The M1078 and M1082 carriers come with a ladder, and therefore do not require a ladder.
4.4.11.4 Installation Tools—The Type III CBC using the appropriate carrier hardware/adapter kit shall be capable of being attached
to, and detached from, the carrier using only those tools of the Basic Issue Items (BII) and the Additional Authorization List (AAL)
as described in the carrier’s operator’s manual.
4.4.11.5 Interference—The Type III CBC shall not obstruct or interfere with the installation, removal, or operation of the carrier’s
components (such as, reflectors, brake/tail lights, rear antenna mounts or D-rings).
4.4.12 Identification—The exterior endwall at the door end of each CBC shall be permanently marked to identify the item
nomenclature, including CBC type, manufacturer, contract number, national stock number, tare weight and serial number. This
information shall be visible, by personnel standing on the ground, with the CBC either mounted or dismounted from its carrier.
4.5 Environmental Requirements—Unless otherwise specified, the Type III CBC shall meet the following Environmental
requirements in both the height extended and height retracted configurations.
4.5.1 Humidity Resistance—The CBC shall be capable of withstanding daily exposure of up to 97 % relative humidity for 20 h
and exposure of 100 % relative humidity (with condensation) for 4 h without evidence of corrosion, structural damage, degradation
or permanent deformation.
4.5.2 Marine Atmosphere (Sea-Salt Fallout)—The CBC, when exposed to a marine environment sea salt fallout rate equivalent
to 25 lb per acre per year (2.0 g/m /year), shall not corrode or degrade.
4.5.3 Ice—The CBC including its door(s), vents and cable ports shall be capable of withstanding and remaining operational while
the CBC is exposed to the forces and effects due to the accumulation of 0.25 in. (6 mm) of ice produced by freezing rain, mist,
or sea spray.
4.5.4 Temperature Range—The CBC shall be capable of withstanding temperatures ranges of −60−60 °F to 160ºF160 °F in storage
and transit and −60−60 °F to 120ºF120 °F plus solar load for normal operations. The CBC, including fasteners, seals, or other
hardware, shall show no evidence of corrosion or degradation.
4.5.5 Temperature Shock—The CBC shall withstand a temperature shock from an equilibrium state of 160160 °F to −70ºF−70 °F
within 5 min and from an equilibrium state of −70−70 °F to 160ºF160 °F within 5 min without evidence of structural damage,
degradation or permanent deformation.
4.5.6 Blowing Sand and Dust—The CBC, when mounted on its carrier, shall resist the effects of blowing sand and dust without
damage or degradation. The CBC shall remain fully operational with no more than 16.80 in. (0.50 pint) of sand penetration into
-4 3
the interior of the CBC. Blowing sand is defined as 150150 micron to 1000 micron particles in concentrations of 1.32 × 10 lb ⁄ft
with a wind speed of 1750 ft/min.
4.5.7 Ultraviolet Effects—The CBC shall show no evidence of structural damage, degradation or permanent deformation as a result
of exposure to ultraviolet effects.
4.5.8 Fire Resistance—The CBC shall be non-burning or self-extinguishing (that is, have a flame time of less than 30 seconds)
30 s) after removal of a flame.
4.5.9 Fungus—The CBC shall be impervious to fungus growth. Materials shall be selected to minimize fungus growth.
4.5.10 Watertightness—The CBC, when mounted on its carrier, without the aide of supplementary sealing, caulking, taping or
other means, shall be capable of withstanding a 40 psig spray from nozzles located 19 in. from, and normal to, each external CBC
surface. The CBC shall not allow more than 8 fluid oz. of water into the interior of the CBC in a 40-min40 min period and the
weight of the CBC shall not increase by more than 1.00 lb.
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4.6 Interface and Operability Requirements—Unless otherwise specified, the Type III CBCs shall meet the following interface and
operability requirements in both the height extended and height retracted configurations.
4.6.1 Interchangeability—The spare parts of the CBC produced under this specification shall be functionally and dimensionally
interchangeable without modification or rework of the part or assembly.
4.6.2 Size—The Type III CBC shall enclose the cargo (rear) portion of the carrier to provide the maximum volume practicable for
its configuration.
4.6.2.1 Interior Width, Length, and Height—The interior dimensions of the Type III CBC shall be no less than 120.00 in. long by
77.0 in. wide by 72.00 in. high in its height extended configuration and shall be no less than 120.00 in. long by 77.0 in. wide by
30.00 in. high in its stowed configuration. The CBC shall not interfere, cover or limit the operation of the D-Rings located around
the perimeter of the host vehicle cargo bed.
4.6.2.2 Exterior Width, Length, and Height—The Type III CBC, when mounted on the carrier, shall meet all the transportability
requirements of the carrier (see 3.4.64.4.6 of the family of Cargo Bed Covers basic specification. The nominal exterior width of
the Type III CBC shall not exceed 88.00 in. Components which may protrude beyond the nominal width (such as, steps, lift rings)
shall not obstruct the driver’s rearview.
5. Verification
5.1 Classification of Inspections—The inspection requirements specified herein are classified as follows: First article inspection
(see 4.1.15.1.1), conformance inspection (see 4.1.25.1.2).
5.1.1 First Article Inspection—When a first article inspection is required (see 3.14.1 and 6.27.2), the CBC shall undergo the tests
and examinations outlined in Table 1. Sampling for the first article inspection shall be as specified in the contract or purchase order.
5.1.2 Conformance Inspection—When a conformance inspection is required (see 6.27.2) specific inspections to be performed shall
be defined by the contract (see 6.27.2) and shall include any verification contained herein.
5.2 Verification Methods—Verification methods can include visual examination, measurement, testing, simulation, modeling,
engineering evaluation, component properties analysis, certification and similarity to previously approved or previously qualified
designs. Unless otherwise specified, the Type III CBC’s requirements shall be verified in both the height extended and height
retracted configurations.
5.2.1 Verification Alternatives—The contractor may propose alternative test methods, techniques, or equipment, including the
application of statistical process control, tool control, or cost effective sampling procedures to verify performance. In the case of
the Type III CBC, the contractor may propose to perform verifications in only one configuration (that is extended or retracted) if
it can be shown that this method will to verify the requirement for both configurations.
5.3 Operating Requirements Verification:
5.3.1 Configurations—Unless otherwise specified, all verifications shall be performed in both the height extended and height
retracted configurations. Failure to meet the requirements of 3.3.14.3.1 shall constitute failure of this test.
5.3.2 Height Adjustment Device—To verify the requirements of 3.3.24.3.2, the CBC while mounted on its carrier, shall undergo
10 extension/retraction cycles in accordance with its manual, using only the hardware provided with the CBC. The CBC and its
carrier shall be inspected after each cycle for damage or degradation. Failure to meet the requirements of 3.3.24.3.2 shall constitute
failure of this test.
5.3.3 CBC Service Life, Reliability and Maintainability—The CBC shall be analyzed to determine that its service life is in
compliance with 3.3.34.3.3. Repairs that are to be completed at the organizational and intermediate levels shall be identified with
projected times to repair. Failure to meet the requirements of 3.3.34.3.3 shall constitute failure. Using only the hardware provided
with the CBC, the CBC shall undergo 10 cycles of installation and removal from its carrier in accordance with its manual. The
CBC and its carrier shall be inspected after each cycle for damage or degradation. Failure to meet the mounting and dismounting
requirements of 3.3.34.3.3 shall constitute failure of this test. The appropriate hardware/adapter kit shall be provided for the Type
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TABLE 1 Sequence of First Article Verifications
Requirement Verification
Verification
Paragraph Paragraph
Configurations 3.3.1 4.3.1
Height adjustment device 3.3.2 4.3.2
CBC service life, reliability,
3.3.3 4.3.3
and maintainability
Personnel hazards 3.3.4 4.3.4
Mechanical 3.3.4.1 4.3.4.1
Edge rounding 3.3.4.2 4.3.4.2
Toxicity 3.3.5 4.3.5
Materials 3.3.5.1 4.3.5.1
Gases or vapors 3.3.5.2 4.3.5.2
Vents 3.3.6 4.3.6
Roof loads 3.3.7 4.3.7
Interior payload provisions 3.3.8 4.3.8
Personnel doors 3.3.9 4.3.9
Personnel door structure 3.3.9.1 4.3.9.1
Door stop 3.3.9.2 4.3.9.2
Surface impact resistance 3.3.10 4.3.10
Tailgate operation 3.3.11 4.3.11
Blackout 3.3.12 4.3.12
Support and ownership
3.4 4.4
requirements
Weight 3.4.1 4.4.1
Personnel door 3.4.2 4.4.2
Door handle 3.4.2.1 4.4.2.1
Secondary exit 3.4.2.2 4.4.2.2
Ladder 3.4.3 4.4.3
Roof access step/handholds 3.4.4 4.4.4
Power and signal access ports 3.4.5 4.4.5
Transportability 3.4.6 4.4.6
Rail 3.4.6.1 4.4.6.1
Fixed wing 3.4.6.2 4.4.6.2
Helicopter sling lift (HSL) 3.4.6.3 4.4.6.3
Ground mobility 3.4.6.4 4.4.6.4
Lifting provisions 3.4.6.5 4.4.6.5
Finish 3.4.7 4.4.7
Non-skid surfaces 3.4.7.1 4.4.7.1
Interior color 3.4.7.2 4.4.7.2
Exterior color 3.4.7.3 4.4.7.3
Chemical agent resistance 3.4.8 4.4.8
Special tool 3.4.9 4.4.9
Carrier interface 3.4.11 4.4.11
Identification 3.4.12 4.4.12
Environmental requirements 3.5 4.5
Humidity resistance 3.5.1 4.5.1
Marine atmosphere 3.5.2 4.5.2
Ice 3.5.3 4.5.3
Temperature range 3.5.4 4.5.4
Temperature shock 3.5.5 4.5.5
Blowing sand and dust 3.5.6 4.5.6
Ultraviolet effects 3.5.7 4.5.7
Fire resistance 3.5.8 4.5.8
Fungus 3.5.9 4.5.9
Watertightness 3.5.10 4.5.10
Interface and operability
3.6 4.6
requirements
Interchangeability 3.6.1 4.6.1
Size 3.6.2 4.6.2
Interior width, length, and height 3.6.2.1 4.6.2.1
Exterior width, length, and height 3.6.2.2 4.6.2.2
TABLE 1 Sequence of First Article Verifications
Requirement Verification
Verification
Paragraph Paragraph
Configurations 4.3.1 5.3.1
Height adjustment device 4.3.2 5.3.2
CBC service life, reliability,
4.3.3 5.3.3
and maintainability
Personnel hazards 4.3.4 5.3.4
Mechanical 4.3.4.1 5.3.4.1
Edge rounding 4.3.4.2 5.3.4.2
Toxicity 4.3.5 5.3.5
Materials 4.3.5.1 5.3.5.1
Gases or vapors 4.3.5.2 5.3.5.2
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Requirement Verification
Verification
Paragraph Paragraph
Vents 4.3.6 5.3.6
Roof loads 4.3.7 5.3.7
Interior payload provisions 4.3.8 5.3.8
Personnel doors 4.3.9 5.3.9
Personnel door structure 4.3.9.1 5.3.9.1
Door stop 4.3.9.2 5.3.9.2
Surface impact resistance 4.3.10 5.3.10
Tailgate operation 4.3.11 5.3.11
Blackout 4.3.12 5.3.12
Support and ownership
4.4 5.4
requirements
Weight 4.4.1 5.4.1
Personnel door 4.4.2 5.4.2
Door handle 4.4.2.1 5.4.2.1
Secondary exit 4.4.2.2 5.4.2.2
Ladder 4.4.3 5.4.3
Roof access step/handholds 4.4.4 5.4.4
Power and signal access ports 4.4.5 5.4.5
Transportability 4.4.6 5.4.6
Rail 4.4.6.1 5.4.6.1
Fixed wing 4.4.6.2 5.4.6.2
Helicopter sling lift (HSL) 4.4.6.3 5.4.6.3
Ground mobility 4.4.6.4 5.4.6.4
Lifting provisions 4.4.6.5 5.4.6.5
Finish 4.4.7 5.4.7
Non-skid surfaces 4.4.7.1 5.4.7.1
Interior color 4.4.7.2 5.4.7.2
Exterior color 4.4.7.3 5.4.7.3
Chemical agent resistance 4.4.8 5.4.8
Special tool 4.4.9 5.4.9
Carrier interface 4.4.11 5.4.11
Identification 4.4.12 5.4.12
Environmental requirements 4.5 5.5
Humidity resistance 4.5.1 5.5.1
Marine atmosphere 4.5.2 5.5.2
Ice 4.5.3 5.5.3
Temperature range 4.5.4 5.5.4
Temperature shock 4.5.5 5.5.5
Blowing sand and dust 4.5.6 5.5.6
Ultraviolet effects 4.5.7 5.5.7
Fire resistance 4.5.8 5.5.8
Fungus 4.5.9 5.5.9
Watertightness 4.5.10 5.5.10
Interface and operability
4.6 5.6
requirements
Interchangeability 4.6.1 5.6.1
Size 4.6.2 5.6.2
Interior width, length, and height 4.6.2.1 5.6.2.1
Exterior width, length, and height 4.6.2.2 5.6.2.2
III CBCs.
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5.3.4 Personal Hazards:
5.3.4.1 Mechanical—The CBC shall conform to regulatory, such as, Title 29 CFR 1910, and consensus design safety standards,
such as ANSI American National Standards Institute (ANSI) standards, unless military STDs or HDBKs require more stringent
limits, and reflect applicable system and personnel safety factors. The CBC shall provide personnel maximum access
(MIL-STD-1472 and MIL-HDBK-759) and safety while installing, operating, and maintaining the equipment.
5.3.4.2 Edge Rounding—All exposed edges and corners shall be rounded to a radius not less than 0.03 in. (0.75 mm). Sharp edges
and corners that can present a personnel safety hazard or caused equipment damage during operation and maintenance shall be
rounded to a radius not less than 0.05 in. (1.3 mm) or suitably protected.
5.3.5 Toxicity:
5.3.5.1 Materials—Certify that Material Safety Data Sheets do not include chemicals identified in the Occupational Safety and
Health Act (OSHA), Title 29 CFR 1910, as cancer-producing substances (carcinogens).
5.3.5.2 Gases or Vapors—Demonstrate the CBC does not produce toxic exposures exceeding OHSA Permissible Exposure Limits,
Title 29 CFR 1910 or ACGIH Threshold Limit Values for noxious odors, toxic or corrosive gases, or vapors from materials used
in the CBC’s construction. Failure to meet the requirements of 3.3.5.24.3.5.2 shall constitute failure of this test.
5.3.6 Vents—The ventilation ports shall be inspected and manually operated (if applicable) for compliance with 3.3.64.3.6. Failure
to meet the requirements of 3.3.64.3.6 shall constitute failure of this test. The Type III CBC shall be verified in the height extended
configuration only.
5.3.7 Roof Loads—The CBC roof shall be subjected to a uniform load of 40 lb/ft over the entire surface. After removal of the
uniform load, a 660 lb load shall be applied to the weakest region of the roof over a 1 by 2 ft1 ft by 2 ft area. Each test shall be
for a duration of 5 min. Failure to meet the requirements of 3.3.74.3.7 shall constitute failure of this test.
5.3.8 Interior Payload Provisions—The Type III CBC, with the interior payload described in 3.3.84.3.8, shall be tested in
accordance with 4.4.6.15.4.6.1 (Rail), 4.4.6.45.4.6.4 (Ground Mobility). The CBC shall also be tested in accordance with
4.4.6.55.4.6.5 (Lifting Provisions). Failure to meet the requirements of 3.3.74.3.7 shall constitute failure of this test.
5.3.9 Personnel Door Loads:
5.3.9.1 Personnel Door Structure—The door shall have a 200 lb static load applied parallel to the hinge line, along the door edge
opposite the hinge, with the door open 90 degrees. After 10 min the load shall be removed and the door examined. Failure to meet
the requirements of 3.3.9.14.3.9.1 shall constitute failure of this test.
5.3.9.2 Door Stop—The door shall be in the open position held by the door stop mechanism. A load, equal to 10 lb/ft times the
largest surface area of the door, shall be applied normal to the door’s surface. The load shall be applied at the midpoint of the edge
of the door, opposite the hinge, for 1 min. The load shall be removed and reapplied to the door at the same point, in the opposite
direction, for 1 min. Failure to meet the requirements of 3.3.9.24.3.9.2 shall constitute a failure of this test.
5.3.10 Surface Impact Resistance—Each type of roof and wall construction found on the completed CBC shall be subjected to an
impact from a 30 lb steel cylinder. The cylinder shall be 3.00 in. in diameter with a hemispherical end. The cylinder shall be
dropped from a height of 30.00 in. onto the exterior surface of the roof and from a height of 16 in. onto the exterior surfaces of
the walls. The cylinder shall be oriented and dropped vertically so that the center of the hemispherical end of the cylinder strikes
the center of the designated test area. The test area shall be oriented horizontally. The cylinder shall not be permitted to
reimpactre-impact the test area after the first impact. The CBC’s interior and exterior surfaces shall be visually examined for
compliance with 3.3.104.3.10. There shall be no fractures on any surface. There shall be no dents on the interior surface. There
shall be no damage or degradation permitted, on either surface, outside a 3.00 in. radius measured from the point of impact of the
cylinder. In addition, there shall be no damage which would indicate loss of structural integrity.
5.3.11 Tailgate Operation—With the CBC mounted on its carrier, the carrier’s tailgate shall be operated (that is, opened and then
closed). Failure to meet the requirements of 3.3.114.3.11 shall constitute failure of this test.
5.3.12 Blackout—The CBC/carrier combination shall be located at the center of a circle of radius 300 m, on level ground, in an
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area with a wooded or hilly background (that is, the silhouette should not be above the horizon). There shall be no significant
obstructions (higher than 18 in. (46 cm)) between observers located on the circumference of the circle and the CBC/carrier
combination. Testing will be conducted in hours of darkness between early evening nautical twilight (EENT) and beginning
morning nautical twilight (BMNT) on a moonless night. A 100-Watt100 Watt unshielded white light bulb, rated at no less than 17
Lumens per Watt, A-19 style, shall be located inside the CBC and suspended approximately 1 ft from the top and center of the
CBC with all doors, ports and vents closed. The light shall be turned on and off at random intervals for a period of 5 min. Eight
observers, positioned along the circumference of the circle at 45 degree intervals starting from the forward longitudinal axis of the
CBC/carrier combination, shall record any light detected during the test period. The Type III CBCs shall be tested in the height
extended configuration only. Failure to meet the requirements of 3.3.124.3.12 shall constitute failure of this test.
5.4 Support and Ownership Requirements Verification—Unless otherwise specified, all verifications shall be performed in both the
height extended and height retracted configuration.
5.4.1 Weight—Compliance with 3.4.14.4.1 shall be determined by weighing the CBC and its mounting hardware. The scale used
shall have a 1 lb or less graduation and shall have an accuracy within plus or minus 1 lb. The scale shall have a current calibration
traceable to the National Institute forof Standards and Technology (NIST). Failure to meet the requirements of 3.4.14.4.1 shall
constitute failure of this test.
5.4.2 Personnel Door—The Type III CBC personnel door shall be measured to determine compliance with 3.4.24.4.2. Failure to
meet the requirements of 3.4.24.4.2 shall constitute failure of this test.
5.4.2.1 Door Handle—The personnel door shall be securely closed. A 30 lb force shall be applied to the exterior personnel door
handle in the direction which best facilitates moving the handle into its open position. After it has been verified that 30 lb 30 lb
is adequate to move the handle fully into its open position, the personnel door shall be opened 160 degrees. The personnel door
shall then be closed and a 30 lb force shall be applied to the exterior handle in the direction which best facilitates moving the handle
to its closed position. Failure to meet the requirements of 3.4.24.4.2 and 3.4.2.14.4.2.1 shall constitute failure of this test.
5.4.2.2 Secondary Exit—The CBC secondary exit shall be measured and examined to determine compliance with 3.4.2.24.4.2.2.
The secondary exit with the tailgate closed shall be opened from inside the CBC by applying a 30 lb force in the direction which
best facilitates its opening. The Type III CBCs shall be verified in the height extended configuration only. Failure to meet the
requirements of 3.4.2.24.4.2.2 shall constitute failure of this test.
5.4.3 Ladder—The ladder shall be attached to the CBC/carrier combination in accordance with the CBC manual. It shall be
demonstrated that military personnel using the ladder can safely enter and exit the CBC/carrier combination. A 400 lb load shall
be applied to the center of each step of the ladder for 1 min. The ladder, CBC and carrier shall be examined for damage or
deformation. Failure to meet the requirements of 3.4.34.4.3 shall constitute failure of this test.
5.4.4 Roof Access Handholds/Footholds—Each deployed handhold/footholds shall be individually subjected to a vertical load of
400 lb applied to its outer most point and maintained for 1 min. The handhold mounted to the roof shall have a horizontal load
of 400 lb applied to the outer most point of the deployed handhold. The roof access handholds/footholds shall be evaluated for
compliance with 3.4.44.4.4. Failure to meet the requirements of 3.4.44.4.4 shall constitute failure of this test.
5.4.5 Power and Signal Access Ports—In its height extended configuration, the Type III CBC shall be inspected for compliance
with 3.4.54.4.5. Failure to meet the requirements of 3.4.54.4.5 shall constitute failure of this test.
5.4.6 Transportability:
5.4.6.1 Rail—The CBC/carrier combination with interior mounting provisions and simulated payload, as specified in each type’s
specification sheet, shall be rail impact tested in accordance with test method standard MIL-STD-810, Method 516.4, Procedure
VIII. When secured to the flatcar, the CBC/carrier combination shall then be inspected for conformance to the Gabarit International
de Chargement (GIC) gauge envelope as shown in interface standard MIL-STD-1366. Failure to meet the requirements of
3.4.6.14.4.6.1 shall constitute failure of this test.
5.4.6.2 Fixed Wing—The CBC/carrier combination shall be tested for compliance with 3.4.6.24.4.6.2 using MIL-HDBK-1791 for
guidance. The Type III CBC shall be tested for roll-on/roll-off loading on the C-130 and C-141 AMC aircraft in the height retracted
configuration only. Failure to meet the requirements of 3.4.6.24.4.6.2 shall constitute failure of this test.
5.4.6.3 Helicopter Sling Loading (HSL)—The CBC/carrier combination, without payload (t
...