Bsi bs en 03660 003 2009

BS EN 3660 003 2009 ICS 49 060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Aerospace series — Cable outlet accessories for circular and rectangular electric[.]

BS EN 3660-003:2009

ICS 49.060

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

BRITISH STANDARD

Aerospace series

— Cable outlet

accessories for circular

and rectangular

electrical and optical

connectors

Part 003: Grommet nut, style A for EN

2997 and EN 4067 — Product standard

This British Standard

was published under the

authority of the Standards

Policy and Strategy

Committee on 31 January

2010

© BSI 2010

ISBN 978 0 580 63337 9

Amendments/corrigenda issued since publication

National foreword

This British Standard is the UK implementation of EN 3660-003:2009 It supersedes BS EN 3660-003:2006 which is withdrawn

The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology

A list of organizations represented on this committee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions

of a contract Users are responsible for its correct application

Compliance with a British Standard cannot confer immunity from legal obligations.

BS EN 3660-003:2009 EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2009

English Version

Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 003:

Grommet nut, style A for EN 2997 and EN 4067 - Product

standard

Série aérospatiale - Accessoires arrière pour connecteurs

circulaires et rectangulaires électriques et optiques - Partie

003 : Écrou serre-fils, type A pour EN 2997 et EN 4067 -

Norme de produit

Luft- und Raumfahrt - Endgehäuse für elektrische und optische Rund- und Rechtecksteckverbinder - Teil 003: Dichtungsmutter, Bauform A für EN 2997 und EN 4067 -

Produktnorm

This European Standard was approved by CEN on 20 June 2009

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 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 Management Centre has the same status as the official versions

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä I S C H E S K O M I T E E FÜ R N O R M U N G

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2009 CEN All rights of exploitation in any form and by any means reserved

worldwide for CEN national Members

Ref No EN 3660-003:2009: E

Contents Page

Foreword 3

1 Scope 4

2 Normative references 4

3 Terms and definitions 4

4 Characteristics 4

5 Designation 11

6 Marking 11

7 Technical specification 11

BS EN 3660-003:2009

EN 3660-003:2009 (E)

3

Foreword

This document (EN 3660-003:2009) 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 May 2010, and conflicting national standards shall be withdrawn at the latest by May 2010

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 3660-003:2006

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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom

1 Scope

This European Standard defines a range of grommet nuts, style A, for use under the following conditions: Associated electrical connector(s) : EN 3660-002

Temperature range, Class N : − 65 °C to 200 °C

Class W : − 65 °C to 175 °C Class K : − 65 °C to 260 °C Class A : − 65 °C to 200 °C

2 Normative references

The following referenced documents are indispensable for the application 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 2591-100*, Aerospace series ― Elements of electrical and optical connection ― Test methods ―

Part 100: General

EN 3660-001:2006, 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

AS 85049A, Connector accessories, electrical general specification for 1)

3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 3660-001:2006 apply

4 Characteristics

4.1 Dimensions and mass

For dimensions and mass, see Figure 1 and Table 1

For interface dimensions, see 4.2

* As well as all parts quoted in this standard

1) Published by: Society of Automotive Engineers, Inc (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA

BS EN 3660-003:2009

EN 3660-003:2009 (E)

5

Dimensions in millimetres

Optional design with four holes for torque wrench, see detail Z

Key

1 Thread A

2 Three off wire lock holes equi-spaced for 0,8 mm max diameter wire

3 Teeth N (see Tables 2 and 3)

4 Knurled, manufacturers option

5 Marking (see Clause 6)

6 Four blind holes for torque wrench equi-spaced ∅ 2,80+00,10 (see Figure 1, detail Z)

a The location of blind holes axis can be left to the manufacturer's preference Location of blind holes is not mandatory NOTE The details X and Y are shown in the different variants (see 4.2.2 and 4.2.3)

Figure 1

6

a

Table 1

Shell

size

Thread Class 2B

Classes N,

A and W

Class K

0

− 1,14 − 1,14 0 + 0,64

0 − 1,57 0 − 0,56 0 max max g

Variant

inches mm mm mm mm mm mm 1 2 1 2

08 0,500-20UNF 15,67 19,47 12,74 13,72 7,75 6,5 3,5 6,7 6,1 16,2

10 0,625-24UNEF 18,64 22,47 15,88 13,72 7,75 9,2 4,0 8,7 6,8 20

12 0,750-20UNEF 21,79 25,47 19,05 13,72 7,75 12,4 5,0 10 8,1 24

14 0,875-20UNEF 24,99 28,67 22,23 13,72 7,75 14,5 6,8 12 10,7 29,3

16 1,000-20UNEF 28,24 31,67 25,40 13,72 7,75 17,6 7,5 13,9 12,5 33,9

18 1,063-18UNEF 30,94 34,67 27,00 13,72 7,75 19,7 8,0 17,2 14,3 41,5

20 1,188-18UNEF 34,16 37,67 30,18 13,72 7,75 22,9 9,0 18 16,3 43,3

22 1,313-18UNEF 37,29 40,67 33,35 13,72 7,75 26,0 9,5 19,9 17,8 47,8

24 1,438-18UNEF 40,46 44,07 36,53 13,72 7,75 28,9 11,0 22,6 19,4 54,4

28 1,750-18UNS 50,01 50,97 44,45 17,83 7,75 34,9 14,0 42,7 21,9 107,1

4.2 Interface dimensions

4.2.1 Associated connection

See EN 3660-002

BS EN 3660-003:2009

EN 3660-003:2009 (E)

7

4.2.2 Variant A – Standard AS85049 interface

See Figure 2, Figure 3 and Table 2

Dimensions in millimetres

Figure 2 — Detail X Figure 3 — Detail Y

Table 2

Dimensions in millimetres

Shell size

∅ G ∅ H ∅ J N

0

− 0,38 + 0,38

0 − 0,25 0 Number

of teeth

08 9,10 7,59 6,86 12

4.2.3 Variant B – Modified AS85049 Interface

See Figure 4, Figure 5 and Table 3

All dimensions are in millimetres

Figure 4 — Detail X (Class K only) Figure 5 — Detail Y

Table 3

Dimensions in millimetres

Shell size

∅ G ∅ H ∅ J ∅ K N

Ref + 0,13

0 − 0,25 0 + 0,18

0 Number

of teeth

08 11,10 9,17 6,86 6,68 12

4.3 Material and finish

Material/Finish Class N : Aluminium/Electroless nickel plated Material/Finish Class W : Aluminium/Olive drab cadmium plated Material/Finish Class K : Stainless steel/Passivated

Material/Finish Class A : Aluminium/Black anodized

BS EN 3660-003:2009

EN 3660-003:2009 (E)

9

4.4 Assembly torque

These torque values are intended for installation use only, see Table 4

Table 4

Shell size

Torque

Nm

± 0,5

08

4,5

10

12

14

16

18

20

9,0

22

24

28 10,0

4.5 Coupling thread strength torques

These torque values are for test purposes, see EN 2591-420 and Table 5

Table 5

Shell size

Torque

Nm

± 0,5

08

5,5

10

12

14

16

18

20

11,0

22

24

28 12,0

4.6 Tests

Test details to be in accordance with Table 6, EN 3660-001 and EN 2591-100

Qualification to be in accordance with EN 3660-001

Table 6

EN 2591- Designation of the test applicable Not

Applicable See

EN 3660-001 Details

102 Examination of dimensions

205 Housing (shell) electrical

212 Surface transfer impedance

301 Endurance at temperature X Classes N, A and W only

305 Rapid change of temperature X —

connector and suspended with non-metallic cord

Duration:

Classes N, K and A 48 h Class W 500 h

314 Immersion at low air pressure X —

403 Sinusoidal and random

vibration X Method B Figure 3 Level J Duration:

8 h in each of two axes

Test performed:

on one group – 50 % of time at − 65 °C – 50 % of time at ambient temperature

on a 2nd group – 100 % of time at maximum temperature of class under test

408 Mating and unmating forces X Only for variant 2, see Table 4

420 Mechanical strength of rear

continued

BS EN 3660-003:2009

EN 3660-003:2009 (E)

11

Table 6 (concluded)

EN 2591- Designation of the test applicable Not

Applicable see

EN 3660-001 Details

422 Locking wire hole strength X —

513 Magnetic permeability X Not fitted to a connector

Max values Classes N, A and W 2,0

a 1 GHz to 10 GHz under consideration

5 Designation

EXAMPLE 1

Description block GROMMET NUT

Identity block EN3660-003XXXXX

Number of this standard

Material/Finish class

Shell size

Variant - A Standard AS85049 interface;

B Modified AS85049 interface

Variant 1: Nothing nut with three holes for wire lock

Variant 2: One nut with four holes for assembly torque

EXAMPLE 2 EN3660-003N08B1 Grommet nut, style A, aluminium, electroless nickel, shell size 08, modified

AS85049 interface, nut with four holes for torque wrench

NOTE 1 No gaps are required between sections in the part number when printed

NOTE 2 If necessary, the code I9005 shall be placed between the description block and the identity block

6 Marking

Refer to EN 3660-001 and Figure 1

7 Technical specification

Refer to EN 3660-001

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