prEN 3660-063

Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 063 : Cable outlet, style K, straight, for heat shrinkable boot, shielded, sealed, self locking - Product standard

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:
Associated electrical connector(s) 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.

Luft- und Raumfahrt - Endgehäuse für elektrische und optische Rund- und Rechtecksteckverbinder - Teil 063: Endgehäuse, Bauform K, gerade, für wärmeschrumpfende Bauteile, Schirmanschluss, abgedichtet, selbstsichernd - Produktnorm

Dieses Dokument legt eine Reihe von Endgehäusen, BauformK, gerade, Schirmanschluss, abgedichtet, selbst
sichernd (verdrehgesichert), für wärmeschrumpfende Bauteile und/oder Metallbänder, für die Verwendung unter folgenden Bedingungen fest:
Elektrische Zubehörteile: EN3660-002.
Temperaturbereich:
KlasseN:
−65°C bis 200°C;
KlasseK:
−65°C bis 260°C;
KlasseW:
−65°C bis 175°C;
KlasseT:
−65°C bis 175°C (Nickel/PTFE-Oberflächenschutz);
KlasseZ:
−65°C bis 175°C (Zink-Nickel-Oberflächenschutz);
KlasseV:
−65°C bis 175°C (Zinn-Zink-Oberflächenschutz, nicht reflektierend);
KlasseD:
−65°C bis 175°C (Zinn-Zink-Oberflächenschutz, dunkel, nicht reflektierend).
Elektrische Zubehörteile: EN3660-033, Metallband (für Schirmanschluss).
Diese Endgehäuse sind für den Anschluss von Gesamtschirmen und/oder Einzelleitungsschirmen ausgelegt. Sie nehmen wärmeschrumpfende Bauteile auf oder ermöglichen deren Anschluss.

Série aérospatiale - Accessoires arrière pour connecteurs circulaires et rectangulaires électriques et optiques - Partie 063 : Raccord, type K, droit, blindé, étanche, pour manchon thermorétractable, à freinage interne - Norme de produit

Le présent document définit une gamme de raccords droits, blindés, étanches, de type K, à freinage interne (anti-rotation) pour manchon thermorétractable et/ou bandes métalliques destinés à être utilisés dans les conditions suivantes :
Connecteur(s) électrique(s) associé(s) : EN 3660-002.
Plage de températures :   classe N :   −65 °C à 200 °C ;
   classe K :   −65 °C à 260 °C ;
   classe W :   −65 °C à 175 °C ;
   classe T :   −65 °C à 175 °C (nickelé PTFE) ;
   classe Z :   −65 °C à 175 °C (zinc nickelé) ;
   classe V :   −65 °C à 175 °C (étain zingué, non réfléchissant) ;
   classe D :   −65 °C à 175 °C (étain zingué, foncé, non réfléchissant).
Accessoires électriques associés : bande métallique EN 3660-033 (pour terminaison blindée).
Ces raccords sont conçus pour la terminaison de tresses de blindage complète et/ou du blindage des câbles individuels. Ils s’adaptent à/permettent la terminaison de manchons thermorétractables.

Aeronavtika - Dodatki za okrogle in pravokotne električne in optične konektorje - 063. del: Kabelska spojka, tip K, ravna, za toplotno skrčljive dele, oklopljena, tesnjena, samozapiralna - Standard za proizvod

General Information

• Status: Not Published
• Publication Date: 31-May-2027
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2/S 3 - Elements of Connection (Connectors, Contacts, rear accessories, crimping tools
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 27-Nov-2025
• Completion Date: 27-Nov-2025
• Ref Project: oSIST prEN 3660-063:2026 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 063 : Cable outlet, style K, straight, for heat shrinkable boot, shielded, sealed, self locking - Product standard

Relations

• Revises: EN 3660-063:2022 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 063: Cable outlet, style K, straight, for heat shrinkable boot, shielded, sealed, self-locking - Product standard
• Effective Date: 03-May-2023

Overview

prEN 3660-063 - Aerospace series: Cable outlet, style K, straight, for heat shrinkable boot, shielded, sealed, self locking - is a CEN product standard that defines a family of shielded, sealed, self‑locking cable outlets (style K) for use with the associated electrical connector family (EN 3660-002). The standard covers geometrical dimensions, material/finish options, temperature classes, mechanical interfaces and performance tests for outlets intended to terminate overall braid and/or individual cable shields and to accommodate heat‑shrinkable boots.

Key topics and technical requirements

• Scope & compatibility
  • Applies to cable outlets for circular and rectangular aerospace electrical and optical connectors; intended to mate with connectors listed in EN 3660-002.
  • Supports termination of overall shielding braid and individual shields and permits heat‑shrink boot termination.
• Temperature classes
  • Defines service temperature ranges for multiple classes:
    • Class N: −65 °C to 200 °C
    • Class K: −65 °C to 260 °C
    • Class W, T, Z, V, D: −65 °C to 175–175 °C (with specific plating notes: Nickel PTFE, Zinc‑nickel, tin‑zinc variants)
• Dimensions, mass and interfaces
  • Detailed shell, cable‑entry and wiring‑chamber dimensions and maximum mass values are specified for multiple shell and cable sizes.
  • Interface features include threads, tooling holes, serrations/knurls and anti‑rotational (self‑locking) mechanisms.
• Materials & finishes
  • Material and plating/finish options are listed (including newly added tin‑zinc classes V and D); hexavalent chromium restrictions and plating notes are covered.
• Performance & tests
  • Mandatory and referenced tests are drawn from the EN 2591 series (visual, dimensional, electrical continuity, surface transfer impedance, lightning pulse, temperature endurance, rapid temperature change, salt mist, sand/dust, fluid resistance, shock, vibration, mechanical endurance, mating/unmating forces, thread strength, magnetic permeability).
  • Sealing and degree of protection reference EN 60529 (IP Code); surface transfer impedance/shielding effectiveness setups are specifically addressed.
• Marking, designation, assembly
  • Requirements for designation, marking and specified assembly torque values (see product tables) ensure consistent installation and procurement.

Applications and users

• Typical uses: terminating cable shields and securing heat‑shrink boots on avionics, flight‑control, power and sensor cabling where EMI/RFI control and environmental sealing are critical.
• Primary users:
  • Aerospace connector and harness designers
  • Component manufacturers and plating suppliers
  • Procurement and quality engineers in aerospace OEMs and MROs
  • Test laboratories and certification bodies validating connector accessories

Related standards

• EN 3660-002 (Index of product standards)
• EN 3660-001 (Technical specification)
• EN 3660-033 (Metallic band for shield termination)
• EN 2591 series (Aerospace test methods)
• EN 60529 (IP Code)

Keywords: prEN 3660-063, cable outlet, style K, heat shrinkable boot, shielded sealed self-locking, aerospace connectors, shield termination, EN 3660-002, EN 3660-033, surface transfer impedance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2026
Aeronavtika - Dodatki za okrogle in pravokotne električne in optične konektorje -
063. 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 063 : 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 063: Endgehäuse, Bauform K, gerade, für
wärmeschrumpfende Bauteile, Schirmanschluss, abgedichtet, selbstsichernd -
Produktnorm
Ta slovenski standard je istoveten z: prEN 3660-063
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 3660-063:2022
English Version
Aerospace series - Cable outlet accessories for circular and
rectangular electrical and optical connectors - Part 063 :
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 063:
Endgehäuse, Bauform K, gerade, für
wärmeschrumpfende Bauteile, Schirmanschluss,
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 3660-063:2025 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 Interface dimensions . 11
4.5 Material and finish . 12
4.6 Assembly torque . 13
5 Tests . 14
5.1 Tests in accordance with EN 2591 test methods . 14
5.2 Special tests — Surface transfer impendence/shielding effectiveness setup . 19
6 Designation. 20
7 Marking . 20
8 Technical specification . 20
Bibliography . 21

European foreword
This document (prEN 3660-063:2025) 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 3660-063:2022.
This document includes the following significant technical changes with respect to EN 3660-063:2022:
a) 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 8, tests in Table 9;
b) addition of Table 7 “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:
Associated electrical connector(s) 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.
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 2591-214, Aerospace series — Elements of electrical and optical connection — Test methods — Part 214:
Lightning strike, current and voltage pulse
EN 2591-301, Aerospace series — Elements of electrical and optical connection — Test methods — Part 301:
Endurance at temperature
EN 2591-305, Aerospace series — Elements of electrical and optical connection — Test methods — Part 305:
Rapid change of temperature
EN 2591-306, Aerospace series — Elements of electrical and optical connection — Test methods — Part 306:
Mould growth
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 2591-315, Aerospace series — Elements of electrical and optical connection — Test methods — Part 315:
Fluid resistance
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 3645 (all parts), Aerospace series — Connectors, electrical, circular, scoop-proof, triple start threaded
coupling operating temperature 175 °C or 200 °C continuous
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 3909, Aerospace series — Test fluids and test methods for electrical and optical components and sub-
assemblies
EN 60529, Degrees of protection provided by enclosures (IP Code)
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/
3.1
self-locking/anti rotational
mechanism which provides a nut rotation with moderate torque in the mated direction and a greater
torque in the unmated direction
4 Characteristics
4.1 Dimensions and mass
Dimensions and mass shall be in accordance with Figures 1 to 3 and Tables 1 to 6.
Cable entry dimensions shall be in accordance with 4.2.
Dimensions in millimetres
Key
1 O-Ring
2 thread C
3 marking
4 four (4) tooling holes spaced 90°apart; ø (2,70 ± 0,15) mm and depth 1,27
5 straight knurl. Pitch manufacturer’s option
6 number of teeth N
7 RKV 08 DIN 82 Figure 2. (Please note there may be crossover dependent on diameter and pitch) or RGV 1.0
DIN 82 as alternative
8 minimum penetration of ø D from the front of serrations
9 break edge
NOTE 1 Cable outlets may be manufactured as cast, fabricated or machined (manufactures option).
1,6µm max.
NOTE 2 No sharp edges/burrs permissible on internal or external surfaces/joints. Surface finish of
on all internal surfaces.
Figure 1 — Cable outlet
Table 1 — Fixed dimensions of shell
Dimensions in millimetres
ø A ø B C ø D E I N
Shell size
Number of
max. max. Thread min. max. min.
teeth
09 21,79 15,24 M12 × 1,0–6H 6,7 16,76 2,9 12
11 24,99 18,21 M15 × 1,0–6H 9,9 16,76 2,9 16
13 29,39 21,18 M18 × 1,0–6H 12,8 16,76 2,9 20
15 32,49 25,14 M22 × 1,0–6H 16,0 16,76 2,9 24
17 35,71 28,12 M25 × 1,0–6H 19,2 16,76 2,9 28
19 38,50 31,09 M28 × 1,0–6H 21,4 16,76 2,9 32
21 41,70 34,06 M31 × 1,0–6H 24,6 16,76 2,9 36
23 44,91 36,90 M34 × 1,0–6H 27,7 16,76 2,9 40
25 47,98 39,88 M37 × 1,0–6H 30,9 16,76 1,7 44
Table 2 — Variable dimensions of wiring chamber
Dimensions in millimetres
H J
Length code wiring
chamber
max.
A 27,10 8,20
B 35,10 16,20
C 40,10 21,20
D 50,10 31,20
Table 3 — Mass max. for classes N, W, T, Z, V, D
Max. mass in grams
Cable entry size code
Length code
Shell size
wiring
code
chamber
A B C D E F G H J K L M
12,3 13,0 14,7 15,5 — — — — — — — — A
13,1 13,8 15,1 15,9 — — — — — — — — B
13,7 14,4 17,6 17,7 — — — — — — — — C
14,6 15,3 19,8 19,9 — — — — — — — — D
14,3 15,1 15,8 16,4 19,4 20,9 — — — — — — A
15,4 16,2 16,9 17,6 20,6 23,3 — — — — — — B
16,1 16,9 17,6 18,3 23,9 24,8 — — — — — — C
17,5 18,3 19,1 19,7 27,0 27,7 — — — — — — D
16,7 17,1 17,6 18,5 19,1 19,8 24,0 25,8 — — — — A
18,1 18,6 19,1 19,9 20,6 21,2 24,7 28,8 — — — — B
19,0 19,4 20,0 20,8 21,5 22,1 28,9 30,6 — — — — C
20,8 21,3 21,7 22,5 23,2 23,8 32,5 34,3 — — — — D
20,5 20,9 21,4 21,9 22,1 23,0 24,4 27,5 29,6 — — — A
22,2 22,7 23,1 23,6 23,9 24,8 26,1 28,4 33,1 — — — B
23,3 23,8 24,3 24,6 25,0 25,9 27,3 33,4 35,4 — — — C
25,5 26,0 26,5 26,8 27,1 28,1 29,4 37,8 39,9 — — — D
23,0 23,6 24,0 24,4 24,7 25,1 26,5 27,6 32,3 34,0 — — A
25,1 25,6 26,1 26,5 26,8 27,1 28,5 29,7 33,5 35,5 — — B
26,5 26,9 27,4 27,7 28,1 28,4 29,8 31,1 39,2 40,9 — — C
29,0 29,4 29,9 30,4 30,7 31,1 32,3 33,6 44,5 46,2 — — D
24,4 24,8 25,3 25,8 26,0 26,3 27,0 28,6 33,1 35,9 — — A
26,7 27,1 27,6 28,1 28,3 28,6 29,3 30,9 35,4 37,1 — — B
28,1 28,5 29,0 29,4 29,8 30,1 30,7 32,4 41,7 43,5 — — C
30,9 31,4 31,9 32,3 32,7 33,0 33,6 35,2 47,5 49,2 — — D
29,6 30,0 30,5 30,9 31,3 31,6 32,2 32,7 34,0 37,5 39,6 — A
32,2 32,7 33,1 33,6 33,8 34,2 34,8 35,3 36,7 38,9 40,9 — B
33,8 34,3 34,7 35,2 35,5 35,9 36,5 36,9 38,3 46,1 48,2 — C
37,1 37,6 38,1 38,4 38,8 39,1 39,8 40,3 41,6 52,7 54,7 — D
31,2 31,6 32,1 32,5 32,8 33,1 33,8 34,3 34,8 36,0 42,2 44,4 A
34,0 34,5 35,0 35,4 35,8 36,1 36,8 37,1 37,8 38,9 43,8 46,0 B
35,9 36,
...