EN 3645-006:2015
(Main)Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 006: Protective cover for receptacle - Product standard
Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 006: Protective cover for receptacle - Product standard
This European Standard specifies the characteristics of protective covers for receptacles in the family of circular electrical connectors with triple start threaded coupling.
It applies to models in Table 2.
For receptacles, see EN 3645-003, EN 3645-004, EN 3645-005, EN 3645-009 and EN 3645-010 respectively.
These connectors are derived from and interchangeable with models W, F, K and Z in MIL-DTL-38999/33.
Luft- und Raumfahrt - Elektrische Rundsteckverbinder, kontaktgeschützt, dreigängige Gewinde-Schnellkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 006: Schutzkappe für festen Steckverbinder - Produktnorm
Série aérospatiale - Connecteurs électriques circulaires à contacts protégés, à accouplement par filetage à pas rapide à trois filets, températures d'utilisation 175 °C ou 200 °C continu - Partie 006 : Bouchon de vol pour embase - Norme de produit
Aeronavtika - Konektorji, električni, okrogli, zaščiteni kontakt, hitra spojka z navojem, stalna delovna temperatura /med/ 175 °C ali /in/ 200 °C - 006. del: Zaščitna kapa - Standard za proizvod
General Information
- Status
- Published
- Publication Date
- 31-Mar-2015
- Withdrawal Date
- 30-Oct-2015
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 01-Apr-2015
- Completion Date
- 01-Apr-2015
Relations
- Effective Date
- 08-Apr-2015
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 3645-006:2015 is a CEN product standard for protective covers for receptacles used with aerospace circular electrical connectors. It applies to the family of scoop-proof, circular connectors with triple start threaded coupling and continuous operating temperatures of 175 °C or 200 °C. The standard defines the characteristics, dimensions, materials and marking rules for receptacle protective covers and is compatible with connector models derived from MIL‑DTL‑38999/33 (models W, F, K and Z).
Key topics and requirements
- Scope and applicability: Covers protective covers for receptacles in the EN 3645 connector family (models listed in Table 2).
- Dimensions and tolerances: Detailed dimensional requirements (in millimetres) and mass limits for shell sizes 09–25 (shell size codes A–J). Internal thread is specified as Class 2B.
- Materials and surface treatment: Model-dependent material/specification options (examples: cadmium-plated aluminium, nickel-plated aluminium, passivated corrosion resisting steel, zinc‑nickel plated aluminium). Maximum continuous operating temperatures are 175 °C (models W, Z) and 200 °C (models F, K).
- Environmental resistance: Example: model W specified with salt spray resistance 500 h. Sealing gasket requirements (bonded or mechanically retained) are defined.
- Attachment and retention: Types of attachment include stainless steel chain or rope with PTFE jacket and eyelet or ring; fastener hardware details ensure free rotation of chain/rope.
- Designation and marking: Prescribed designation format and marking per EN 3645-001; includes protective cover code, shell size code and attachment type.
- Referenced specifications: Electrical, mechanical and climatic requirements are covered via linkage to EN 3645-002 and the technical/specification parts EN 3645-001.
Applications and users
Practical uses:
- Protecting receptacle interfaces during storage, transport, maintenance and ground handling.
- Preserving connector integrity in high‑temperature aerospace environments (engines, thermal areas).
- Preventing contamination, corrosion and mechanical damage to critical connector receptacles.
Who uses EN 3645-006:2015:
- Connector manufacturers and component designers.
- Aerospace OEMs and suppliers specifying connector accessories.
- Procurement and quality assurance teams verifying compliance.
- MRO (maintenance, repair and overhaul) operations and avionics technicians.
Related standards
- EN 3645-001 (technical specification)
- EN 3645-002 (performance and contact arrangements)
- EN 3645-003, -004, -005, -009, -010 (receptacle product standards)
- MIL‑DTL‑38999/33 (interchangeability reference)
This standard ensures consistent, interoperable protective covers for high‑temperature aerospace circular connectors, aiding reliable connector performance and lifecycle protection.
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Frequently Asked Questions
EN 3645-006:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 006: Protective cover for receptacle - Product standard". This standard covers: This European Standard specifies the characteristics of protective covers for receptacles in the family of circular electrical connectors with triple start threaded coupling. It applies to models in Table 2. For receptacles, see EN 3645-003, EN 3645-004, EN 3645-005, EN 3645-009 and EN 3645-010 respectively. These connectors are derived from and interchangeable with models W, F, K and Z in MIL-DTL-38999/33.
This European Standard specifies the characteristics of protective covers for receptacles in the family of circular electrical connectors with triple start threaded coupling. It applies to models in Table 2. For receptacles, see EN 3645-003, EN 3645-004, EN 3645-005, EN 3645-009 and EN 3645-010 respectively. These connectors are derived from and interchangeable with models W, F, K and Z in MIL-DTL-38999/33.
EN 3645-006:2015 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3645-006:2015 has the following relationships with other standards: It is inter standard links to EN 3645-006:2006, EN ISO 28399:2020, EN 3660-063:2009, EN 3645-013:2007, EN 4531-001:2012, EN 3660-035:2017, EN 3660-020:2009, EN 3660-062:2009, EN ISO 13666:2012, EN ISO 11664-3:2013, EN 3645-005:2006, EN 3660-021:2009, EN ISO 12311:2013, CEN/TS 17946:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3645-006:2015 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2015
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Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded
coupling, operating temperature 175 °C or 200 °C continuous - Part 006: Protective
cover for receptacle - Product standard
Luft- und Raumfahrt - Elektrische Rundsteckverbinder, kontaktgeschützt, dreigängige
Gewinde-Schnellkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 006:
Schutzkappe für festen Steckverbinder - Produktnorm
Série aérospatiale - Connecteurs électriques circulaires à contacts protégés, à
accouplement par filetage à pas rapide à trois filets, températures d'utilisation 175 °C ou
200 °C continu - Partie 006 : Bouchon de vol pour embase - Norme de produit
Ta slovenski standard je istoveten z: EN 3645-006:2015
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 3645-006
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2015
ICS 49.060 Supersedes EN 3645-006:2006
English Version
Aerospace series - Connectors, electrical, circular, scoop-proof,
triple start threaded coupling, operating temperature 175 °C or
200 °C continuous - Part 006: Protective cover for receptacle -
Product standard
Série aérospatiale - Connecteurs électriques circulaires à Luft- und Raumfahrt - Elektrische Rundsteckverbinder,
contacts protégés, à accouplement par filetage à pas rapide kontaktgeschützt, dreigängige Gewinde-Schnellkupplung,
à trois filets, températures d'utilisation 175 °C ou 200 °C Betriebstemperatur 175 °C oder 200 °C konstant - Teil 006:
continu - Partie 006 : Bouchon de vol pour embase - Norme Schutzkappe für festen Steckverbinder - Produktnorm
de produit
This European Standard was approved by CEN on 5 December 2014.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3645-006:2015 E
worldwide for CEN national Members.
Contents Page
Foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 5
5 Designation . 6
6 Marking . 7
7 Technical specification . 7
Foreword
This document (EN 3645-006:2015) has been prepared by the Aerospace and Defence Industries Association
of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of ASD,
prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by October 2015, and conflicting national standards shall be withdrawn at
the latest by October 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 3645-006:2006.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Icel
...
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