1、 STD-BSI BS EN 2138-ENGL 2OOD W 3bZ4667 0833979 487 BRITISH STANDARD AEROSPACE SERIES Washers, flat, in steel, cadmium plated The European Standasd EN 2138:1999 has the status of a British Standard ICs 49.030.50 BS EN 2138:2000 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW B
2、S EN 2138:2 direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 March 2000 Amd. No. National foreword Date Comments This British Standard is the English ianguage version of EN 2 138 1999. It supersedes BS EN 21381993
3、 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee ACW12, Aerospace fasteners and fastening systems, to Subcommittee ACW12/1, Aerospace fasteners and fastening systems, which has the responsibility to: - aid enquirers to understand the text; - present t
4、o the responsible internationaiBuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed - monitor related intemational and European developments and promulgate them in the UK A list of organizations represented on this subcommittee can be ob
5、tained on request to its seme-. Cross-references The British Standards which implement these international or European publications may be found in the BSI Stan- Catalogue under the section entitled “International Standards Correspondence Index“, or by using the “Find“ facility of the BSI standards
6、Electronic Catalogue. 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 of itself confer immunity from legal obligations. Summary of pages Th
7、is document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copynght notice in this document indicates when the document was last issued. O BSI 0%2000 I I ISBN O 580 34228 X STDOBSI BS EN 2138-ENGL 2000 m 1624669 0833981 037 = EUROPEAN STANDA
8、RD NORME EUROPENNE EUROPISCHE NORM EN 2138 December 1999 ICs 49.030.50 Supersedes EN 2138:1993 + AC:1996 English version Aerospace series - Washers, flat, in steel, cadmium plated Srie arospatiale - Rondelles plates, en acier, cadmies Luft- und Raumfahrt - Scheiben, aus Stahl, verkadmet This Europea
9、n Standard was approved by CEN on 30 September 1999. CEN members are bound to comply with the CENICENELEC Intemal 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 con
10、cerning such national standards may be obtained on application to the Central Secretariat 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 ow
11、n language and notified to the Centrai Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark. Finland, France, Germany, Greece, Iceland, Ireland, Italy. Luxembourg, Netherlands, Noway, Portugal, Spain, Swe
12、den, Switzerland and United Kingdom. EUROPEAN COMMiITEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels Q 1999 GEN All rights of exploitation in any form and by any means resewed worldwide for CEN national
13、Members. Ref. No. EN 2138:1999 E STDmBSI BS EN 2138-ENGL 2000 = Lb24bb9 0833982 T73 Page 2 EN 2138:1999 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Associa
14、tion, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA, 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 endorseme
15、nt, at the latest by June 2000, and conflicting national standards shall be withdrawn at the latest by June 2000. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech R
16、epublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. - STD-BSI BS EN 2138-ENGL 2000 Lb24hh9 0833783 0T a Page 3 EN 2138:1999 1 Scope This standard specifies the characteristics of fl
17、at steel washers, cadmium plated, for maximum operating temperature 235 OC, for aerospace applications. They are intended for use primarily underneath nuts, for use underneath bolt heads the compatibility shall be checked. 2 Normative references This European Standard incorporates by dated or undate
18、d reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when inc
19、orporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2000 EN 2133 EN 2209 EN 2424 EN 2438 Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers EN 2133 Aerospace series
20、- Cadmium plating of steels with specified tensile strength I 1 450 MPa, copper, copper alloys and nickel alloys Steel FE-PL43S - 900 MPa I Aerospace series 1) Aerospace series - Marking of aerospace products Steel FE-PL62 - 900 MPa 5 R, 2 1 100 MPa - Bars De I 40 mm - Aerospace series 1) I 1 100 MP
21、a - Sheets, strips and plates 0,5 mm I a I 20 mm - 3 Required characteristics 3.1 See figure 1 and tables 1 and 2. Dimensions and tolerances are expressed in millimetres and apply after surface treatment. Configuration - Dimensions - Masses 3.2 Materials EN 2209 or EN 2438 3.3 Surface treatment EN 2
22、133,7 pm to 10 pn Black colour option: code F (EN 2133, except for corrosion resistance requirement) 1) Published as AECMA Standard at the date of publication of this standard STDDBSI BS EN 2138-ENGL 2000 Lb24bb9 0833984 84b W Page 4 EN 2138:1999 Values in micrornetres apply prior to surface treatme
23、nt. 7 “;/I Remove sharp edges 0,l to 0,2. Both faces Figure 1 Table 1 - Y - 0,18 - 0.25 - STD-BSI BS EN 2L38-ENGL 2000 lb24bb9 0833985 782 200 220 Page 5 EN 21 38:1999 - - 4,93 7,90 9,86 - 1580 - - - 8,47 10,57 - 16,94 4 Designation EXAMPLE: I Identity block Description block Number of this standard
24、 Diameter code (see table 1) Thickness code (see table 2) 1 Black coiour code (see 3.3) NOTE: If necessasr, the code 19005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style G 6 Quality assurance EN 2000 STDmBSI BS EN 2138-ENGL ZOO0 Lb24bb9 0833986 bL9 BS
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