prEN 3660-064

SLOVENSKI STANDARD
01-januar-2026
Aeronavtika - Dodatki za okrogle in pravokotne električne in optične konektorje -
064. del: Kabelska spojka, tip K, ravna, za toplotno skrčljive dele, oklopljena,
tesnjena, samozapiralna - Standard za proizvod
Aerospace series - Cable outlet accessories for circular and rectangular electrical and
optical connectors - Part 064: Cable outlet, style K, straight, for heat shrinkable boot,
shielded, sealed, self locking - Product standard
Luft- und Raumfahrt - Endgehäuse für elektrische und optische Rund- und
Rechtecksteckverbinder - Teil 064: Endgehäuse, Bauform K, gerade, für
wärmeschrumpfende Bauteile, Schirmanschluss, abgedichtet, selbstsichernd -
Produktnorm
Série aérospatiale - Accessoires arrière pour connecteurs circulaires et rectangulaires
électriques et optiques - Partie 064 : Raccord type K, droit, blindé, étanche, pour
manchon thermorétractable, auto-freiné - Norme de produit
Ta slovenski standard je istoveten z: prEN 3660-064
ICS:
31.220.99 Druge elektromehanske Other electromechanical
komponente components
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2025
ICS 49.060 Will supersede EN 3660-064:2022
English Version
Aerospace series - Cable outlet accessories for circular and
rectangular electrical and optical connectors - Part 064:
Cable outlet, style K, straight, for heat shrinkable boot,
shielded, sealed, self locking - Product standard
Série aérospatiale - Accessoires arrière pour Luft- und Raumfahrt - Endgehäuse für elektrische und
connecteurs circulaires et rectangulaires électriques et optische Rund- und Rechtecksteckverbinder - Teil 064:
optiques - Partie 064 : Raccord type K, droit, blindé, Endgehäuse, Bauform K, gerade, für
étanche, pour manchon thermorétractable, auto-freiné wärmeschrumpfende Bauteile, Schirmanschluss,
- Norme de produit abgedichtet, selbstsichernd - Produktnorm
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3660-064:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Characteristics . 6
4.1 Dimensions and mass . 6
4.2 Cable entry dimensions . 10
4.3 Associated connectors . 11
4.4 Front interface . 11
4.4.1 AS85049 interface all classes . 11
4.4.2 Optional interface (all classes) . 12
4.5 Material and finish . 14
4.6 Assembly torque . 15
5 Tests . 16
5.1 Tests in accordance with EN 2591 series . 16
5.2 Special tests — Surface transfer impendence/shielding effectiveness setup . 21
6 Designation . 22
7 Marking . 22
8 Technical specification . 22
Bibliography . 23

European foreword
This document (prEN 3660-064:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 3660-064:2022.
This document includes the following significant technical changes with respect to EN 3660-064:2022:
— addition of classes V and D (tin-zinc): update of Table 3 and Table 4 (Mass max.), Subclause 4.5
description of material and finish, assembly torque in Table 9, tests in Table 10;
— addition of Table 8 “Hexavalent chromium compound list”.
1 Scope
This document defines a range of cable outlets, style K, straight, shielded, sealed, self-locking (anti-
rotational), heat shrinkable boot, and/or metallic bands for use under the following conditions:
The mating connectors are listed in EN 3660-002.
Temperature range Class N: −65 °C to 200 °C;
Class K: −65 °C to 260 °C;
Class W: −65 °C to 175 °C;
Class T: −65 °C to 175 °C (Nickel PTFE plating);
Class Z: −65 °C to 175 °C (zinc nickel plating);
Class V: −65 °C to 175 °C (Tin zinc plating, non-reflective);
Class D: −65 °C to 175 °C (Tin zinc plating dark non-reflective).
Associated electrical accessories: EN 3660-033 Metallic band (for shield termination).
These cable outlets are designed for termination of overall shielding braid and/or individual cable
shields. They accommodate/permit the termination of heat shrinkable boots.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
DIN 82, Knurls
EN 2591-101, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 101: Visual examination
EN 2591-102, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 102: Examination of dimensions and mass
EN 2591-205, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 205: Housing (shell) electrical continuity
EN 2591-212, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 212: Surface transfer impedance
EN 2591-213, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 213: Shielding effectiveness from 100 MHz to 1 GHz
EN 2591-214, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 214: Lightning strike, current and voltage pulse
EN 2591-305, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 305: Rapid change of temperature
EN 2591-307, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 307: Salt mist
EN 2591-308, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 308: Sand and dust
EN 2591-402, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 402: Shock
EN 2591-403, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 403: Sinusoidal and random vibration
EN 2591-406, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 406: Mechanical endurance
EN 2591-408, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 408: Mating and unmating forces
EN 2591-420, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 420: Mechanical strength of rear accessories
EN 2591-423, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 423: Connector rear accessories thread strength
EN 2591-513, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 513: Magnetic permeability
EN 2997 (all parts), Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-
resistant or non fire-resistant, operating temperatures −65 °C to 175 °C continuous, 200 °C continuous,
260 °C peak
EN 3660-001, Aerospace series — Cable outlet accessories for circular and rectangular electrical and
optical connectors — Part 001: Technical specification
EN 3660-002, Aerospace series — Cable outlet accessories for circular and rectangular electrical and
optical connectors — Part 002: Index of product standards
EN 60529, Degrees of protection provided by enclosures (IP Code)
AS85049, Connector Accessories, Electrical General Specification For
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 3660-001 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/

Published by Society of Automotive Engineers (SAE), available at: https://www.sae.org/.
3.1
self-locking band
anti rotational band
self-locking or anti rotational mechanism which provides a nut rotation with moderate torque in the
mated direction and which provides a greater torque in the unmated direction
4 Characteristics
4.1 Dimensions and mass
Dimensions and mass shall be in accordance with Figure 1 to Figure 6 and Table 1 to Table 7.
Cable entry dimensions shall be in accordance with 4.2.
Dimensions in millimetres
Key
1 thread C
2 marking
3 number of teeth N
4 four (4) tooling holes spaced 90°apart. ⌀ 2,60, depth 1,27
5 straight knurl. Pitch manufacturer’s option
6 RKV 08 DIN 82. Figure 2. (Please note there can be crossover dependent on diameter and pitch.)
7 clearance on thread C
8 break edge
NOTE Cable outlets can be manufactured as cast, fabricated or machined (manufacturer’s option).
No sharp edges / burrs are permissible on internal or external surfaces / joints.
Surface finish of µm shall be on all internal surfaces.
≤ 16,
Figure 1 — Cable outlet
Table 1 — Fixed dimensions of shell
Dimensions in millimetres
⌀ A ⌀ B C E N
Shell size
Number of
max. max. Thread max.
teeth
08 22,48 15,67 0,500–20UNF 15,3 12
10 25,65 18,64 0,625–24UNEF 15,3 15
12 28,83 21,79 0,750–20UNEF 15,3 21
14 32,00 24,99 0,875–20UNEF 15,3 24
16 35,18 28,24 1,000–20UNEF 15,3 30
18 38,55 30,94 1,0625–18UNEF 15,3 33
20 41,53 34,16 1,1875–18UNEF 15,3 36
22 44,70 37,29 1,3125–18UNEF 15,3 39
24 47,89 40,46 1,4375–18UNEF 15,3 42
28 54,23 49,45 1,750–18UNS 15,3 54
Table 2 — Variable dimensions of wiring chamber
Dimensions in millimetres
H J
Length code wiring
chamber
max. min.
A 27,5 8,57
B 35,5 16,57
C 40,5 21,60
D 50,5 31,60
The code and dimensions of the wiring chamber shall be valid for all sizes of cable outlet.
Table 3 — Mass max. for classes N, T, W, Z, V, D
Mass max. in grams
Cable entry size code Length code
Shell size
wiring
code
A B C D E F G H J K L M
chamber
12,3 13,0 14,7 15,5 — — — — — — — — A
13,1 13,8 15,1 15,9 — — — — — — — — B
13,7 14,4 17,3 18,2 — — — — — — — — C
14,6 15,3 19,4 20,2 — — — — — — — — D
Cable entry size code Length code
Shell size
wiring
code
A B C D E F G H J K L M
chamber
14,3 15,1 15,8 16,4 20,0 20,8 — — — — — — A
15,4 16,2 16,9 17,6 24,3 25,1 — — — — — — B
16,1 16,9 17,6 18,3 26,9 27,7 — — — — — — C
17,5 18,3 19,1 19,7 32,2 33,1 — — — — — — D
16,7 17,1 17,6 18,5 19,1 19,8 22,7 24,4 — — — — A
18,1 18,6 19,1 19,9 20,6 21,2 23,2 25,6 — — — — B
19,0 19,4 20,0 20,8 21,5 22,1 25,2 26,9 — — — — C
20,8 21,3 21,7 22,5 23,2 23,8 27,8 29,6 — — — — D
20,5 20,9 21,4 21,9 22,1 23,0 24,4 28,1 29,6 — — — A
22,2 22,7 23,1 23,6 23,9 24,8 26,1 29,6 31,1 — — — B
23,3 23,8 24,3 24,6 25,0 25,9 27,3 31,1 32,4 — — — C
25,5 26,0 26,5 26,8 27,1 28,1 29,4 33,9 35,3 — — — D
23,0 23,6 24,0 24,4 24,7 25,1 26,5 27,6 32,4 34,2 — — A
25,1 25,6 26,1 26,5 26,8 27,1 28,5 29,7 34,4 36,1 — — B
26,5 26,9 27,4 27,7 28,1 28,4 29,8 31,1 36,1 37,8 — — C
29,0 29,4 29,9 30,4 30,7 31,1 32,3 33,6 39,6 41,3 — — D
24,4 24,8 25,3 25,8 26,0 26,3 27,0 28,6 34,2 35,9 — — A
26,7 27,1 27,6 28,1 28,3 28,6 29,3 30,9 36,5 38,2 — — B
28,1 28,5 29,0 29,4 29,8 30,1 30,7 32,4 38,3 40,0 — — C
30,9 31,4 31,9 32,3 32,7 33,0 33,6 35,2 42,1 43,8 — — D
29,6 30,0 30,5 30,9 31,3 31,6 32,2 32,7 34,0 37,7 39,8 — A
32,2 32,7 33,1 33,6 33,8 34,2 34,8 35,3 36,7 40,4 42,4 — B
33,8 34,3 34,7 35,2 35,5 35,9 36,5 36,9 38,3 42,6 44,6 — C
37,1 37,6 38,1 38,4 38,8 39,1 39,8 40,3 41,6 46,9 49,0 — D
31,2 31,6 32,1 32,5 32,8 33,1 33,8 34,3 34,8 36,0 40,7 42,8 A
34,0 34,5 35,0 35,4 35,8 36,1 36,8 37,1 37,8 38,9 43,8 45,9 B
35,9 36,3 36,8 37,3 37,6 38,0 38,5 39,0 39,7 40,7 46,2 48,4 C
39,6 40,0 40,5 40,9 41,3 41,6 42,2 42,7 43,4 44,4 51,2 53,2 D
38,1 38,5 39,0 39,4 39,7 40,1 40,7 41,2 41,9 42,1 43,4 46,7 A
41,3 41,9 42,3 42,7 43,0 43,4 44,0 44,4 45,1 45,3 46,6 49,9 B
43,4 43,8 44,3 44,7 45,1 45,4 46,0 46,5 47,2 47,4 48,6 52,7 C
47,5 48,0 48,4 48,8 49,1 49,5 50,1 50,6 51,2 51,4 52,7 58,1 D
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