1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Aerospace series - Washers, wire locking in aluminium alloy, anodizedBS EN 3904:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3904 November 2017 ICS 49.030.50 English Version Aerospace series - Washers, wire
2、locking in aluminium alloy, anodized Srie arospatiale - Pattes dancrage, en alliage daluminium, anodises Luft- und Raumfahrt - Scheiben, Drahtsicherung aus Aluminiumlegierung, anodisiert This European Standard was approved by CEN on 4 September 2017. CEN members are bound to comply with the CEN/CENE
3、LEC 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 o
4、r 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 off
5、icial 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
6、, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All r
7、ights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3904:2017 ENational forewordThis British Standard is the UK implementation of EN 3904:2017. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace faste
8、ners and fastening systems.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. The British Standards Institution 2
9、017 Published by BSI Standards Limited 2017ISBN 978 0 580 98677 2ICS 49.030.50Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2017.Amendments/corrige
10、nda issued since publicationDate Text affectedBRITISH STANDARDBS EN 3904:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3904 November 2017 ICS 49.030.50 English Version Aerospace series - Washers, wire locking in aluminium alloy, anodized Srie arospatiale - Pattes dancrage, en alliage dalu
11、minium, anodises Luft- und Raumfahrt - Scheiben, Drahtsicherung aus Aluminiumlegierung, anodisiert This European Standard was approved by CEN on 4 September 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standar
12、d 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,
13、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, Bulga
14、ria, 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerl
15、and, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national M
16、embers. Ref. No. EN 3904:2017 EBS EN 3904:2017EN 3904:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Required characteristics 4 3.1 Configuration Dimensions Masses 4 3.2 Materials . 4 3.3 Surface treatment . 4 4 Designation 6 5 Marking . 6 6 Quality assurance 6 B
17、S EN 3904:2017EN 3904:2017 (E) 3 European foreword This document (EN 3904:2017) 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 European Standard
18、 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
19、May 2018, and conflicting national standards shall be withdrawn at the latest by May 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. According
20、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, Gree
21、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 3904:2017EN 3904:2017 (E) 4 1 Scope This European Standard specifies the characteri
22、stics of wire locking washers in aluminium alloy, anodized for maximum operating temperature 120 C for aerospace applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated referen
23、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2090, Aerospace series - Aluminium alloy AL-P2024-T3 - Clad sheet and strip 0,3 mm a 6 mm prEN 2091-001, Aluminium Alloy AL-P13 PI - T4 - Clad Sheets And
24、Strips 1)prEN 2091-002, Aluminium alloy 2024-T4 - Clad sheet and strip - 0,4 a 6 mm 1)EN 2284, Aerospace series - Sulphuric acid anodizing of aluminium and wrought aluminium alloys EN 2424, Aerospace series - Marking of aerospace products EN 9100, Quality Management Systems - Requirements for Aviati
25、on, Space and Defense Organizations 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres and apply after surface treatment. 3.2 Materials EN 2090 or prEN 2091-001 or prEN 2091-002. 3.3 Surface treatment EN 228
26、4. Values in micrometres apply prior to surface treatment. 1) Published as ASD-STAN pre-standard at the date of publication of the present standard (www.asd-stan.org) BS EN 3904:2017EN 3904:2017 (E) 5 Key a before bending b radiused Figure 1 Table 1 Diameter code B 0,20+ C 0,25 L 0,25 R 0,25 Mass a
27、030 3,2 3 7 3 0,1 040 4,3 4 8 4 0,22 050 5,3 4,5 8,5 4,5 0,24 060 6,4 5,5 9,5 5,5 0,31 080 8,4 7,5 11,5 7,5 0,49 100 10,5 8 12 8 0,54 120 12,5 9,5 13,5 9,5 0,61 140 14,5 10,5 14,5 10,5 0,68 aApproximate values (kg/1 000 pieces), calculated on the basis of 2,8 kg/dm3, for information purposes only.BS
28、 EN 3904:2017EN 3904:2017 (E) 6 4 Designation EXAMPLE NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style G. 6 Quality assurance EN 9100. BS EN 3904:2017This page deliberately left blankThis page deliberately left blankBSI
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