BS EN 4125-2010 Aerospace series - Nuts anchor self-locking fixed two lug reduced series with incremental counterbore in heat resisting steel MoS2 lubricated - Classification 900 M.pdf

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1、BS EN 4125:2010ICS 49.030.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts, anchor, self-locking, fixed, two lug, reduced series, with incremental counterbore, in heat resisting steel, MoS2lubricated Classification: 900 MPa (at ambient tem

2、perature) / 315 CLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010 BSI 2010ISBN 978 0 580 70532 8Amendments/corrigenda issued since p

3、ublicationDate CommentsBS EN 4125:2010National forewordThis British Standard is the UK implementation of EN 4125:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee ca

4、n be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHI

5、NA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4125 January 2010 ICS 49.030.30 English Version Aerospace series - Nuts, anchor, self-locking, fixed, two lug, reduced series, with incremental counterbore, in heat resisting

6、 steel, MoS2lubricated - Classification: 900 MPa (at ambient temperature) / 315 C Srie arospatiale - crous river, freinage interne, fixes, double patte, srie rduite, avec chambrage trs profond, en acier rsistant chaud, lubrifis MoS2- Classification : 900 MPa ( temprature ambiante) / 315 C Luft- und

7、Raumfahrt - Annietmuttern, selbstsichernd, beiderseitig verkrzter Flansch, mit tiefer zylindrischer Aussenkung, aus hochwarmfestem Stahl, MoS2-geschmiert - Klasse: 900 MPa (bei Raumtemperatur) / 315 C This European Standard was approved by CEN on 21 November 2009. CEN members are bound to comply wit

8、h the CEN/CENELEC 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 Management Ce

9、ntre 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 own language and notified to the CEN Management Centre has the same status as the offic

10、ial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slov

11、akia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide

12、 for CEN national Members. Ref. No. EN 4125:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010EN 4125:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .54 Designation 75 Marking .86 T

13、echnical specification .8Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010EN 4125:2010 (E) 3 Foreword This document (EN 4125:2010) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-S

14、TAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard 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 sta

15、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2010, and conflicting national standards shall be withdrawn at the latest by July 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject

16、of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgar

17、ia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang

18、Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010EN 4125:2010 (E) 4 1 Scope This standard specifies the characteristics of self-locking two lug, reduced series, incremental counterbored fixed anchor nuts, in heat resisting steel, MoS2lubricated. Classific

19、ation: 900 MPa1) / 315 C2). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies

20、. EN 2398, Aerospace series Heat resisting steel FE-PA2601 (X6NiCrTiMoV26-15) Rm 900 MPa Bars for machined bolts D 25 mm EN 2399, Aerospace series Heat resisting steel FE-PA2601 (X4NiCrTiMoV26-15) Rm 900 MPa Bars for forged bolts D 25 mm EN 2424, Aerospace series Marking of aerospace products EN 249

21、1, Aerospace series Molybdenum disulphide dry lubricants Coating methods EN 3638, Aerospace series Heat resisting alloy FE-PA2601 (X6NiCrTiMoV26-15) Consumable electrode remelted Solution and precipitation treated Sheet, strip and plate 0,5 mm a 10 mm EN 3639, Aerospace series Heat resisting alloy F

22、E-PA2601 Softened and cold worked Wire for forged fasteners D 15 mm 900 MPa Rm 1100 MPa3)EN 9100, Quality Management Systems Requirements for Aviation, Space and Defense Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts TR 3791, A

23、erospace series Materials for self-locking nuts, threaded inserts and screw thread inserts of temperature classes 425 C4) ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts ISO 5858, Aerospace Nuts, self-locking, with maximum operating temperature less than or equal to 425

24、C Procurement specification ISO 8788, Aerospace Nuts, metric Tolerances of form and position 1) Corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without breaking or cracking when tested with a bolt of a higher strength class. 2) Maximum temperature

25、that the nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment. 3) Published as ASD-STAN Prestandard at the date of publication of this standard. 4) Publishe

26、d as ASD-STAN Technical Report at the date of publication of this standard. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010EN 4125:2010 (E) 5 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Di

27、mensions and tolerances are expressed in millimetres and apply before MoS2lubrication. Details of form not stated are at the manufacturers option. 3.2 Tolerances of form and position ISO 8788. 3.3 Materials EN 2398, EN 2399, EN 3638, EN 3639 or TR 3791. 3.4 Surface treatment EN 2491, thickness not s

28、pecified. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010EN 4125:2010 (E) 6 These values in micrometres apply before surface treatment. The values do not apply to threads and sheared edges the surface texture of which will be achieve

29、d by usualmanufacturing methods. Remove sharp edges 0,1 to 0,4. Key 1 Marking 2 Radius or chamfer 3 Thread 4 Form out-of-round in this area to achieve self-locking. Tooling marks are permitted in this area. Figure 1 6,3 3,2 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Unc

30、ontrolled Copy, (c) BSIBS EN 4125:2010EN 4125:2010 (E) 7 Table 1 Diameter code Thread a A E F G Jb K L M Nc R Mass d Counterbore code min. min. max. max. max. max. max. 050 MJ50,8-4H6H 04 4 7 14 5,5 7,3 9 19,2 8,5 1,1 2,51,2 06 6 10,5 1,7 08 8 12,5 2,1 10 10 14,5 2,5 060 MJ61-4H5H 04 4 8 16 6,5 8,7

31、10 22,2 9,4 1,35 3 1,8 06 6 11,4 2,1 08 8 13,4 2,5 10 10 15,4 3,0 aIn accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. bIs to sharp corners (chamfered) or point of tangency (radiused). cIs applicable at the rivet hole location. dApproximate valu

32、es (kg/1 000 pieces), calculated on the basis of 7,85 kg/dm3, given for information purposes only. 4 Designation EXAMPLE Description block NUT Identity block EN4125-06008 Number of this standard Diameter code (see Table 1) Counterbore code (see Table 1) NOTE If necessary the originator code I9005 sh

33、all be placed between the description block and the identity block. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010EN 4125:2010 (E) 8 5 Marking EN 2424, style N. See Figure 1. 6 Technical specification ISO 5858, except for: Approval

34、of manufacturers: see EN 9100; Qualification of products: see EN 9133. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSIBS EN 4125:2010This page has been intentionally left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04,

35、 Uncontrolled Copy, (c) BSIBS EN4125:2010BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Eu

36、rope and at theinternational level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our products

37、and services.We would be grateful if anyone finding an inaccuracy or ambiguity while usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover. Tel:+44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers

38、 members an individual updating service called PLUS which ensuresthat subscribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications should beaddressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0

39、)20 89967001 Email: You may also buy directly using a debit/creditcard from the BSI Shop on the Website http:/ response to orders for international standards, it is BSI policy to supply theBSI implementation of those that have been published as British Standards,unless otherwise requested.Informati

40、on on standardsBSI provides a wide range of information on national, European andinternational standards through its Library and its Technical Help to ExportersService. Various BSI electronic information services are also available whichgive details on all its products and services. Contact Informat

41、ion Centre. Tel:+44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: Subscribing members of BSI are kept up to date with standards developmentsand receive substantial discounts on the purchase price of standards. For detailsof these and other benefits contact Membership Administration. Tel: +44 (0)20

42、8996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to British Standards via British StandardsOnline can be found at http:/ information about BSI is available on the BSI website at http:/.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in

43、theUK, of the publications of the international standardization bodies. Except aspermitted under the Copyright, Designs and Patents Act 1988 no extract maybe reproduced, stored in a retrieval system or transmitted in any form or by anymeans electronic, photocopying, recording or otherwise without pr

44、ior writtenpermission from BSI.This does not preclude the free use, in the course of implementing the standard,of necessary details such as symbols, and size, type or grade designations. Ifthese details are to be used for any other purpose than implementation then theprior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright and Licensing Manager.Tel: +44 (0)20 8996 7070 Email: Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 08:04, Uncontrolled Copy, (c) BSI

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