1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 3660-003 Edition P 4 March 2017 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: 49.060 Supersedes e
2、dition P 3 of December 2008 and will supersede EN 3660-003:2009 Descriptors: ENGLISH VERSION Aerospace series Cable outlet accessories for circular and rectangular electrical and optical connectors Part 003: Grommet nut, style A Product standard Luft- und Raumfahrt Endgehuse fr elektrische und optis
3、che Rund- und Rechtecksteckverbinder Teil 003: Dichtungsmutter, Bauform A Produktnorm Srie arospatiale Accessoires arrire pour connecteurs circulaires et rectangulaires lectriques et optiques Partie 003 : crou serre-fils, type A Norme de produit This “Aerospace Series“ Prestandard has been drawn up
4、under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the
5、publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, the ASD-STAN prEN will be submi
6、tted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing a
7、ny national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and suitability for any particular use, including
8、 any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or any suggestio
9、ns that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-mail: salesa
10、sd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1st March 2017 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2017 ASD-STAN prEN 3660-003:2017 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative refer
11、ences 3 3 Terms and definitions . 3 4 Characteristics . 4 5 Designation. 10 6 Marking 10 7 Technical specification . 10 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-ST
12、AN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3660-003:2017 (E) 3 1 Scope This standard defines a range of grommet nuts, style A, for use under the following conditions: Associated electrical connector(s) : EN 3660-002 Temperature range, Cl
13、ass 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 Class T : 65 C to 175 C (Nickel PTFE plating) Class Z : 65 C to 175 C (Black Zinc Nickel Plating) 2 Normative references The following documents, in whole or in part, are normatively referenced in this docu
14、ment and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591- *, Aerospace series Elements of electrical and optical connection Test methods EN 3
15、660-001, 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 standar
16、ds 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3660-001 apply. * All parts quoted in this standard. prEN 3660-003:2017 (E) 4 4 Characteristics 4.1 Dimensions and mass For dimensions and mass, see Figure 1 and Table 1. For interface dimensions, see
17、 4.2. Dimensions in millimetres 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 Table 2) 4 Knurled, manufacturers option 5 Marking (see Clause 6) 6 Four equi-spaced blind holes for torque wrench (see Figure 1, detail Z) NOTE For details X
18、and Y, see 4.2.2. a The location of blind holes axis can be left to the manufacturers preference. Location of blind holes is not mandatory. Figure 1 prEN 3660-003:2017 (E) 5 Table 1 Shell size A B C D E a Mass Thread Class 2B Classes N, A, W, T and Z Class K max. 0,64 0 0 1,57 0 0,56 max. inches mm
19、mm mm mm g 08 0.500-20UNF 19,47 12,74 13,72 7,75 4,77 13,22 10 0.625-24UNEF 22,47 15,88 13,72 7,75 6,24 17,31 12 0.750-20UNEF 25,47 19,05 13,72 7,75 7,15 19,77 14 0.875-20UNEF 28,67 22,23 13,72 7,75 8,84 23,53 16 1.000-20UNEF 31,67 25,40 13,72 7,75 10,18 27,96 18 1.063-18UNEF 34,67 27,00 13,72 7,75
20、10,48 29,99 20 1.188-18UNEF 37,67 30,18 13,72 7,75 11,78 33,67 22 1.313-18UNEF 40,67 33,35 13,72 7,75 13,05 37,32 24 1.438-18UNEF 44,07 36,53 13,72 7,75 14,47 41,38 28 1.750-18UNS 50,97 44,45 17,30 7,75 24,66 71,54 a E dimension is taken when the coupling nut is pulled in forward position. 4.2 Inter
21、face dimensions 4.2.1 Associated connection See EN 3660-002. 4.2.2 Front interface See Figure 2, Figure 3 and Table 2. Figure 2 Detail X Figure 3 Detail Y prEN 3660-003:2017 (E) 6 Table 2 Dimensions in millimetres Shell size G H J L N Ref. 0,10 0 0,18 0 0,18 0 Number of teeth 08 11,10 9,15 7,92 6,68
22、 12 10 14,53 12,36 11,13 9,35 15 12 17,45 15,30 14,07 12,62 21 14 20,62 18,48 17,25 14,68 24 16 23,80 21,65 20,42 17,73 30 18 25,20 23,08 21,85 19,86 33 20 28,37 26,25 25,02 23,04 36 22 31,55 29,43 28,20 26,21 39 24 34,72 32,60 31,37 29,13 42 28 42,75 38,90 37,67 35,10 54 4.3 Material and finish Mat
23、erial/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 Material/Finish Class T : Aluminium (Nickel PTFE plated) Material/Finish Cl
24、ass Z : Aluminium (Black Zinc Nickel plated) 4.4 Assembly torque These torque values are intended for installation use only, see Table 3. prEN 3660-003:2017 (E) 7 Table 3 Shell size Torque Nm 0,5 Classes N, W, A, T and Z Class K 08 4,5 6,3 10 8,6 12 12,2 14 16 13,1 18 20 9,0 15,4 22 24 28 13,6 16,7
25、4.5 Coupling thread strength torque These torque values are for test purposes only, see EN 2591-420 and Table 4. Table 4 Shell size Torque Nm 0,5 Classes N, W, A, T and Z Class K 08 5,6 8,5 10 11,3 12 15,8 14 16 17,0 18 20 11,3 19,8 22 24 28 17,0 21,5 4.6 Tests Test details to be in accordance with
26、Table 5, EN 3660-001 and EN 2591-100. Qualification to be in accordance with EN 3660-001. prEN 3660-003:2017 (E) 8 Table 5 (1 of 2) EN 2591- Designation of the test Not applicable Applicable see EN 3660-001 Details 101 Visual examination X 102 Examination of dimensions and mass X See 4.1. 205 Housin
27、g (shell) electrical continuity X 212 Surface transfer impedance (from 100 MHz to 1 GHz) a X 301 Endurance at temperature X 305 Rapid change of temperature X Classes TA TB T1 0,5 0 0 0,5 C C min. N, A 200 65 30 W, T, Z 175 65 30 K 260 65 30 306 Mould growth X 307 Salt mist X Cable outlet not fitted
28、to a connector and suspended with non-metallic cord. Duration: Classes N, and A 48 h Classes W, T, Z and K 500 h 308 Sand and dust X 314 Immersion at low air pressure X 315 Fluid resistance X 316 Ozone resistance X 317 Flammability X 402 Shock X Method A. Severity: 100 g No. of shocks: One (1) in ea
29、ch direction in three (3) perpendicular axes, i.e. six (6) shocks. Use Table 3 values for the assembly. For mounting method, please refer to EN 3660-001. When tested the cable outlet accessory shall not be damaged, nor shall there be any loosening of parts during exposure to shock. Monitoring discon
30、tinuity is not required. prEN 3660-003:2017 (E) 9 Table 5 (2 of 2) EN 2591- Designation of the test Not applicable Applicable see EN 3660-001 Details 403 Sinusoidal and random vibration X Method B. Figure 3. Level J Duration: Eight (8) hours in each of two (2) axes Test performed: on one group 50 %
31、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. Use Table 3 values for the assembly. For mounting method, please refer to EN 3660-001. When tested the cable outlet accessory shall not be damaged, nor shall there be any loos
32、ening of parts during vibration. 406 Mechanical endurance X 408 Mating and unmating forces X 420 Mechanical strength of rear accessories X Phase D and 4.5, Table 4. 422 Locking wire hole strength X 513 Magnetic permeability X Not fitted to a connector. All classes 2,0 a 1 GHz to 10 GHz under conside
33、ration prEN 3660-003:2017 (E) 10 5 Designation EXAMPLE Description block GROMMET NUT Identity block EN3660-003XXXX Number of this standard Material/Finish class Shell size Variant- A Standardised interface; B This variant is no longer used EXAMPLE EN3660-003N08A Grommet nut, Class N (aluminium, elec
34、troless nickel), shell size 08, Variant A (standardised interface) NOTE 1 Variant B has been removed to standardise on a common interface. Variant A has been kept for legacy purposes. NOTE 2 No gaps are required between sections in the part number when printed. NOTE 3 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.
