BS EN 2908-1994 Nuts bihexagonal self-locking deep counterbored in heat resisting steel FE-PA92HT (A286) - Classification 1100 MPa (at ambient temperature) 650 C《FE-PA92HT(A286)耐热钢.pdf

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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2908:1994 Nuts, bihexagonal, self-locking, deep counterbored, in heat resisting steel FE-PA92HT (A286) Classification: 1100 MPa (at ambient temperature)/650 C The European Standard EN 2908:1994 has the status of a British Standard UDC 621.882.3-034.018.44:629.

2、7BSEN2908:1994 This British Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15 December 1994 BSI 04-2000 The following BSI references relate to the work on this standard: Com

3、mittee reference ACE/12 Draft for comment 88/76214 DC ISBN 0 580 22621 2 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterr

4、eichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standard Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institut

5、e of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaol

6、a de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN2908:1994 BSI 04-2000 i Contents Page Cooperating organizations In

7、side front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Required characteristics 3 4 Designation 4 5 Marking 4 6 Technical specification 4 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-reference Inside bac

8、k cover Figure 1 4 Table 1 4BSEN2908:1994 ii BSI 04-2000 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN2908:1994 Aerospace series Nuts, bihexagonal, self-locking, deep counterbored, i

9、n heat resisting steel FE-PA92HT (A286) Classification: 1100 MPa (at ambient temperature)/650 C, published by the European Committee for Standardization (CEN). EN 2908:1994 was produced as a result of international discussions in which the United Kingdom took an active part. A British Standard does

10、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 This document comprises a front cover, an inside

11、 front cover, pages i and ii, theEN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE

12、 EUROPISCHE NORM EN 2908 August 1994 UDC 621.882.3-034.018.44:629.7 Descriptors: Aircraft industry, fastener, double hexagonal nut, self-locking nut, heat resistant steel, classification, characteristic, dimension, screw thread, code, designation, marking English version Aerospace series Nuts, bihex

13、agonal, self-locking, deep counterbored, in heatresisting steel FE-PA92HT (A286) Classification:1100 MPa (at ambient temperature)/650 C Srie arospatiale crous bihexagonaux, freinage interne, chambrs, en acier rsistant chaud FE-PA92HT (A286) Classification:1100 MPa ( temprature ambiante)/650 C Luft-u

14、nd Raumfahrt Zwlfkantmuttern, selbstsichernd, mit zylindrischer Aussenkung, aus hochwarmfestem Stahl FE-PA92HT (A286) Klasse: 1100 MPa (beiRaumtemperatur)/650 C This European Standard was approved by CEN on 1994-08-17. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which s

15、tipulate 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 Central Secretariat or to any CEN member. This European Standar

16、d 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 Central Secretariat has the same status as the official versions. CEN members are the national standar

17、ds bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Centra

18、l Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 2908:1994 EEN2908:1994 BSI 04-2000 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accord

19、ance 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. This standard was submitted for Formal Vote, and the result was positive. This Euro

20、pean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 1995, and conflicting national standards shall be withdrawn at the latest by February 1995. According to the CEN/CENELEC Internal Regulations, the f

21、ollowing countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom.EN2908:1994 BSI 04-2000 3 1 Scope This standard specifies the

22、characteristics of self-locking bihexagonal nuts with deep counterbore in FE-PA92HT for aerospace applications. Classification: 1100 MPa 1) / 650 C 2) 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative referenc

23、es 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 incorporated in it by amendment or revision. For undated references the lat

24、est edition of the publication referred to applies. ISO 4095, Fasteners for aerospace construction Bi-hexagonal wrenching configuration. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. EN 2399, Heat resisting steel FE-PA92-HT R mU 900 MPa Bars for forged bolts D k 25 mm

25、 Aerospace series 3) . EN 2424, Aerospace series Marking of aerospace products 3) . EN 3004, Aerospace series Nuts, self-locking, in heat resisting steel FE-PA92HT (A286) Classification:1100 MPa/650 C Technical specification 4) . EN 3639, Aerospace series Heat resisting alloy FE-PA2601 Softened and

26、cold worked Wire for forged fasteners D k 15 mm 900 MPa k R mk 1100 MPa 4) . 3 Required characteristics 3.1 Configuration Dimensions Tolerances Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres. 3.2 Materials EN 2399 or EN 3639 1) The strength class of the bolt concerned

27、which can withstand the load at ambient temperature when tested at 100 % load without cracking or breaking of the nut. 2) Maximum test temperature of the parts 3) Published as AECMA Standard at the date of publication of this standard 4) Published as AECMA Prestandard at the date of publication of t

28、his standardEN2908:1994 4 BSI 04-2000 Table 1 4 Designation EXAMPLE: NOTEIf necessary, the code I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style A, as indicated on Figure 1. 6 Technical specification EN 3004 Figure 1 Thread a E F H J K L M N T Y Z

29、Mass kg/1000 parts . Code Designation max. min. max. max. min. min. min. max. 0,2 050 MJ50,8-4H6H 5,8 5,2 7 11,5 9, 8,3 5,7 2 9,4 4,5 0,1 0,2 2,87 060 MJ61-4H5H 7,1 6,3 8 12,9 10, 9,8 5,95 2,3 10,3 4,75 3,98 070 MJ71-4H5H 8,1 7,3 9 14,1 12, 11,3 6,2 2,6 11,1 5 4,95 080 MJ81-4H5H 9,1 8,3 10 15,7 13,

30、12,8 6,45 2,8 12,2 5,25 6 100 MJ101,25-4H5H 11,1 10,3 12 18,5 16, 15,8 6,7 3,1 14,3 5,5 0,13 0,3 8,84 a In accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round.BSEN2908:1994 BSI 04-2000 National annex NA (informative) Committees responsible The Unite

31、d Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/12 upon which the following bodies were represented: Association of Electronics, Telecommunications and Business Equipment Industries Brit

32、ish Industrial Fasteners Federation Ministry of Defence Society of British Aerospace Companies Ltd. National annex NB (informative) Cross-reference The British Standard corresponding to the International Standard referred to in the text is as follows: International Standard Corresponding British Sta

33、ndard ISO 5855-2:1988 BS 6293 MJ threads for aerospace construction Part 2:1982 Specification for dimensions for bolts and nutsBS EN 2908:1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It p

34、resents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of B

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