EN 2883-2009 en Aerospace series - Nuts hexagonal self-locking with counterbore and captive washer in heat resisting steel MoS2 lubricated - Classification 1 100 MPa (at ambient te.pdf

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1、BS EN 2883:2009ICS 49.030.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts, hexagonal, self locking, with counterbore and captive washer, in heat resisting steel, MoS2 lubricated Classification: 1 100 MPa (at ambient temperature) / 315 nul

2、lCThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 July 2009 BSI 2009ISBN 978 0 580 68582 8Amendments/corrigenda issued since publicationDate CommentsBS EN 2883:2009National forewordThis British Standard is the UK implementation of EN 2883:2009

3、.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 can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof

4、a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 2883:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2883 July 2009 ICS 49.030.20 English Version Aerospace series - Nuts, hexagonal, self-lock

5、ing, with counterbore and captive washer, in heat resisting steel, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature) / 315 C Srie arospatiale - crous hexagonaux, freinage interne, avec chambrage et rondelle captive, en acier rsistant chaud, lubrifis MoS2 - Classification: 1 100 MP

6、a ( temprature ambiante) / 315 C Luft- und Raumfahrt - Sechskantmuttern, selbstsichernd, mit zylindrischer Aussenkung und Brdelscheibe, aus hochwarmfestem Stahl, MoS2-geschmiert - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 C This European Standard was approved by CEN on 6 June 2009. CEN members ar

7、e bound to comply with 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

8、the CEN Management Centre 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 sam

9、e status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, R

10、omania, Slovakia, 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 2009 CEN All rights of exploitation in any form and by any means reserv

11、ed worldwide for CEN national Members. Ref. No. EN 2883:2009: EBS EN 2883:2009EN 2883:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Required characteristics .4 4 Designation 6 5 Marking .6 6 Technical specification .6 BS EN 2883:2009EN 2883:2009 (E) 3 Foreword This documen

12、t (EN 2883:2009) 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 National Associations and the Official

13、 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 January 2010, and conflicting national standards shall be withdrawn at t

14、he latest by January 2010. 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 CEN/CENELEC Internal Regulations, the nati

15、onal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

16、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 2883:2009EN 2883:2009 (E) 4 1 Scope This standard specifies the characteristics of self-locking hexagonal nuts, with counterbore and captive washer, in heat resisting steel, MoS2lubricated. Classi

17、fication: 1 100 MPa 1) / 315 C 2)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) ap

18、plies. EN 2424, Aerospace series Marking of aerospace products. EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods. EN 2516, Aerospace series Passivation of corrosion resisting steels and decontamination of nickel base alloys.EN 9100, Aerospace series Quality management s

19、ystems Requirements (based on ISO 9001:2000) and Quality systems Model for quality assurance in design, development, production, installation and servicing (based on ISO 9001:1994). EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts. ISO 5855-2,

20、 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 C Procurement specification. ISO 8538, Aerospace Nuts, hexagonal, self-locking, with counterbore and captive washer, with MJ threads

21、, classifications: 1 100 MPa (at ambient temperature)/235 C, 1 100 MPa (at ambient temperature)/315 C and 1 100 MPa (at ambient temperature)/425 C Dimensions. ISO 8788, Aerospace Nuts, metric Tolerances of form and position. TR 3791, Aerospace series Materials for self-locking nuts, threaded inserts

22、 and screw thread inserts of temperature classes 425 C. 3)3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. 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 bo

23、lt of a higher strength class. 2) Maximum temperature that the nut can withstand without continuous change in its original characteristics, after return to ambient temperature. The maximum temperature is determined by the surface treatment. 3) Published as ASD Technical Report at the date of publica

24、tion of this standard. BS EN 2883:2009EN 2883:2009 (E) 5 Dimensions and tolerances are: in conformity with ISO 8538, 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 TR 37

25、91 3.4 Surface treatment Nut: threaded element only, EN 2491, thickness not specified. Washer: EN 2516, process class appropriate to the material. These values in micrometres apply before surface treatment. They do not apply tothreads and sheared edges the surface texture of which will be as achieve

26、d by usual manufacturing methods. Remove sharp edges 0,1 to 0,4. Key 1 Washer shall be free to rotate on the nut 2 Form out-of-round in this area to achieve the self-locking torque requirements (Tool marks acceptable) 3 Thread 4 Chamfer, radius or broken edge 5 Marking aBearing surface diameter of t

27、he washer bWrench pad engagement Figure 1 6,3 1,6 BS EN 2883:2009EN 2883:2009 (E) 6 Table 1 Diameter code Thread aE bF bG H J K L M N P Mass cmin. Nom. Tol. max. max. min. min. max. min. min. min. 030 MJ30,5-4H6H 4,2 4 h12 6,7 4,6 3,4 5,2 3,8 0,4 1,2 1,6 0,4 040 MJ40,7-4H6H 5,3 5 8,4 6,2 4,4 6,4 4,8

28、 1,5 2,2 0,85 050 MJ50,8-4H6H 6,5 6 9,6 7,4 5,5 7,6 5,8 0,62 2,4 1,15 060 MJ61-4H5H 7,6 7 11,1 8,1 6,5 9 6,8 2,3 2,7 1,6 070 MJ71-4H5H 8,7 8 13,3 9 7,5 11 8 2,7 2,6 080 MJ81-4H5H 10,9 10 h13 14,6 9,9 8,5 12 9 3,2 3,8 100 MJ101,25-4H5H 13,2 12 17,2 12 10,5 14,7 11 3,8 3 7,5 120 MJ121,25-4H5H 15,5 14

29、21 13,8 12,5 18,5 13 4,5 11 aIn accordance with ISO 5855-2. In the self-locking zone the tolerances apply before forming out-of-round. bThese dimensions apply before forming out-of-round, but finished nuts shall fit a standard socket wrench. cApproximate values (kg/1 000 pieces), calculated on the b

30、asis of 7,85 kg/dm3, given for information purposes only. 4 Designation EXAMPLE Description block NUT Identity block EN2883-050 Number of this standard Diameter code (see Table 1) NOTE If necessary the originator code I9005 should be placed between the description block and the identity block. 5 Mar

31、king EN 2424, style N (see Figure 1). 6 Technical specification ISO 5858, except for clauses: a) Approval of manufacturers: see EN 9100; b) Qualification of bolts: see EN 9133. BS EN 2883:2009This page has been intentionally left blankBS EN2883:2009BSI GroupHeadquarters 389Chiswick High Road,London,

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