EN 3903-2017 en Aerospace series - Washers laminated in corrosion resisting steel《航空航天系列-垫片 复合材料 耐腐蚀钢》.pdf

1、BS EN 3903:2017Aerospace series Washers,laminated, in corrosionresisting steelBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 3903:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 3903:2017. The UK participation in its

2、preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners 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 resp

3、onsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 92616 7 ICS 49.030.50Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Stand

4、ards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 3903:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3903 March 2017 ICS 49.030.50 English Version Aerospace series - Washers, laminated, in corrosion resistin

5、g steel Srie Arospatiale - Rondelles pelables, en acier rsistant la corrosion Luft- und Raumfahrt - Scheiben aus Schichtblech aus korrosionsbestndigem Stahl This European Standard was approved by CEN on 11 March 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which st

6、ipulate 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 or to any CEN member. This Europea

7、n 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 official versions. CEN members are t

8、he 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, Norway, Poland, Portugal, Roman

9、ia, 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 rights of exploitation in any form

10、 and by any means reserved worldwide for CEN national Members. Ref. No. EN 3903:2017 EBS EN 3903:2017EN 3903:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Required characteristics 4 4 Designation 6 5 Marking . 6 6 Quality assurance 6 BS EN 3903:2017EN 3903:2017

11、(E) 3 European foreword This document (EN 3903:2017) 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 Standard has received the approval of the Na

12、tional 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 September 2017, and conflicting nati

13、onal standards shall be withdrawn at the latest by September 2017. 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. According to the CE

14、N-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, Greece, Hunga

15、ry, 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 3903:2017EN 3903:2017 (E) 4 1 Scope This European Standard specifies the characteristics of

16、laminated washers, in corrosion resisting steel, 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 references, only

17、 the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2424, Aerospace series Marking of aerospace products EN 9100, Aerospace series Quality Management Systems Requirements for Aviation, Space and Defence Organization

18、s 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres. 3.2 Material Austenitic corrosion resistant steel Rm 440 MPa BS EN 3903:2017EN 3903:2017 (E) 5 Values in micrometres Key 1 Shim thickness: 0.025 (code A) 0.05 (cod

19、e B) Figure 1 Table 1 Diameter code D1D2Mass aH13 Nom. Tol. 030 3,2 6 0 0,3 0,25 040 4,3 8 0 0,4 0,45 050 5,5 10 0,69 060 6,5 11 0,78 070 7,5 14 1,18 080 8,5 15 1,45 100 10,5 18 2,11 120 12,5 21 0 0,5 2,81 140 14,5 24 3,61 160 16,5 27 4,50 180 18,5 30 5,50 200 20,5 33 6,59 220 22,5 36 7,79 240 24,5

20、38 8,32 270 27,5 42 9,94 300 30,5 45 10,8 a Approximate values (kg/1 000 pieces), calculated on the basis of 7,85 kg/dm3, for information purposes only3,2 Ramax 1,6 BS EN 3903:2017EN 3903:2017 (E) 6 4 Designation EXAMPLE Description block WASHER Identity block EN3903A200 Number of this standard Thic

21、kness code (see Figure 1) Diameter code (see Table 1) 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 This page deliberately left blankBSI is the national body responsible for preparing Bri

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