1、BRITISH STANDARD AEROSPACE SERIES BSEN 2139:1990 Specification for Washers, flat heat resisting steel This European Standard EN 2139 has the status of a British Standard. UDC 621.882.4 034.14.018.44:629.7BSEN2139:1990 This British Standard was published under the authority ofthe Board of BSI and com
2、es intoeffect on 29 June 1990 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference ACE/12 Draft for comment 88/72140 DC ISBN 0 580 18164 2 Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard
3、 was prepared, comprises the national standards organizations of the following Western European countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de no
4、rmalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Icelandic Council for Standardization Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxemburg Inspection des travails et des mines Netherlan
5、ds Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Instituto Espaol de Normalizacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendm
6、ents issued since publication Amd. No. Date of issue CommentsBSEN2139:1990 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Brief history 2 Text of EN 2139 3 National appendix A Inside back cover National appendix B Inside back coverBSEN2139:1990 ii BSI 1
7、2-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN2139 “Aerospace series. Washers, flat heat resisting steel”, published by the European Committee for Standardization (CEN). EN2139
8、 was produced as a result of international discussion in which the UK took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not
9、of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2to6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorpora
10、ted. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2139 March 1989 UDC: 621.882.4 034.14.018.44:629.7 Key words: Aircraft industry Washers Heat resistant steels Designation, dimensions English version Aerospace series Was
11、hers, flat heat resisting steel Srie arospatiale Rondelles plates en acier rsistant chaud Luft- und Raumfahrt Scheiben aus hochwarmfestem Stahl This European Standard was accepted by CEN on 26 May 1988. CEN members are bound to comply with the requirements of CEN Internal Regulations which stipulate
12、 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 Central Secretariat or to any CEN member. This European Standard ex
13、ists 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 CEN Central Secretariat has the same status as the official versions. CEN members are the national standards o
14、rganizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Cent
15、ral Secretariat: rue de Stassart 36, B-1050 Brussels CEN 1989 Copyright reserved to all CEN members Ref. No. EN 2139:1989 EEN2139:1989 BSI 12-1999 2 Brief history This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After enquiries and votes carrie
16、d out in accordance with the rules of this Association, this Standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. According to the Common CEN/CENELEC Rules, the following countries a
17、re bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Brief history 2 1 Scope and field of application 3 2 Referenc
18、es 3 3 Required characteristics 3 4 Designation 5 5 Marking 5 Figure Configuration 3 Table 1 Dimensions Tolerances 4 Table 2 Thickness code and masses 5EN2139:1989 BSI 12-1999 3 1 Scope and field of application This standard specifies the characteristics of flat heat resisting steel washers for use
19、in aerospace applications, at temperatures below650 C. They are intended for use primarily underneath nuts, for use underneath bolt heads the compatibility shall be checked. 2 References EN 2171, Heat resisting steel FE-PA92HT R mU 900MPa Bars Aerospace series. EN 2175, Heat resisting steel FE-PA93H
20、T, solution treated and precipitation treated Sheets and stripsa k3mm Aerospace series. EN 2424, Aerospace series Identification marking of standard fasteners. EN 2516, Aerospace series Passivation of corrosion resisting steels 1) . 3 Required characteristics 3.1 Configuration Dimensions Tolerances
21、Configuration shall correspond to the Figure; dimensions and tolerances shall correspond to theFigure andTable 1. These dimensions apply after passivation. 3.2 Surface roughness R a=6,34m all over unless otherwise specified. The values apply prior to passivation. 3.3 Material Heat resisting steel EN
22、2171 or EN2175. 3.4 Surface treatment Passivation EN2516. 1) In preparation. Figure ConfigurationEN2139:1989 4 BSI 12-1999 Table 1 Dimensions Tolerances Dimensions in millimetres Diameter A B C 10% X Y code tol. h14 016 1,8 3,2 0,4 0,3 0,18 020 2,2 4 0,4 025 2,7 5 0,5 030 3,2 6 0,5 1 035 3,7 H13 7 0
23、,5 1 0,5 040 4,3 8 0,5 1 1,6 050 5,5 10 0,5 1 1,6 060 6,5 12 0,5 1 1,6 2 070 7,5 14 0,5 1 1,6 2 080 8,5 16 0,5 1 1,6 2 100 10,5 20 1 1,6 2 2,5 120 12,5 24 1 1,6 2 2,5 140 14,5 26 1 1,6 2 3,2 0,25 160 16,5 28 1 1,6 2 3,2 180 18,5 31 1 1,6 2 3,2 200 20,5 H14 35 1,6 2 3,2 220 22,5 37 1,6 2 3,2 240 24,5
24、 42 2 3,2 4 270 27,5 47 2 3,2 4 300 30,5 53 2 3,2 4 330 33,5 57 2 3,2 4 360 36,5 63 2 3,2 4 390 39,5 69 2 3,2 4EN2139:1989 BSI 12-1999 5 Table 2 Thickness code and masses 4 Designation Each washer shall only be designated as in the following example: NOTEIf necessary the originator code S9005 may be
25、 introduced between the description block and the identity block. 5 Marking EN 2424, style G. In addition, the quantity shall be introduced (Mass or number). Dimensions in millimetres Thickness C 0,4 0,5 1,0 1,6 2,0 2,5 3,2 4,0 Code 04 05 10 16 20 25 32 40 Diameter code Masses (7,95 kg/dm 3 ) kg/1 0
26、00 pieces . 016 0,017 020 0,028 025 0,05 030 0,08 0,16 035 0,11 0,22 040 0,14 0,28 0,45 050 0,21 0,43 0,69 060 0,31 0,62 1,00 1,25 070 0,43 0,86 1,37 1,71 080 0,56 1,13 1,80 2,25 100 1,77 2,84 3,55 4,44 120 2,57 4,12 5,14 6,43 140 2,85 4,57 5,70 9,15 160 3,14 5,02 6,27 10,04 180 3,79 6,07 7,58 12,15
27、 200 4,93 7,90 9,86 15,80 220 8,47 10,57 16,94 240 14,26 22,85 28,52 270 17,80 28,52 35,60 300 23,02 36,89 46,04 330 26,06 41,76 52,12 360 32,30 51,77 64,61 390 39,22 62,85 78,436 blankBSEN2139:1990 BSI 12-1999 National appendix A The United Kingdom participation in the preparation of this European
28、Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/12 upon which the following bodies were represented: Electronic Engineering Association Ministry of Defence Society of British Aerospace Companies Limited National appendix B The British Standards c
29、orresponding to the European Standards referred to in the text are identical in number and title as those given inclause 2.BSEN 2139:1990 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presen
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