1、BRITISH STANDARD AEROSPACE SERIESBS EN 2882:2006Nuts, hexagonal, self-locking, with counterbore and captive washer, in steel, cadmium plated, MoS2 lubricated Classification: 1 100 MPa (at ambient temperature) / 235 CThe European Standard EN 2882:2006 has the status of a British StandardICS 49.030.30
2、g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2882:2006This British Standard was published under the authority of the Standards Policy and S
3、trategy Committee on 31 August 2006 BSI 2006ISBN 0 580 49058 0National forewordThis British Standard is the official English language version of EN 2882:2006. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, which has the
4、 responsibility to:A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled
5、“International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with
6、a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international
7、and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued sin
8、ce publicationAmd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2882 July 2006 ICS 49.030.30 English Version Aerospace series Nuts, hexagonal, self-locking, with counterbore and captive washer, in steel, cadmium plated, MoS2 lubricated Classification: 1 100 MPa (at ambient t
9、emperature) / 235 C Srie arospatiale Ecrous hexagonaux, freinage interne, avec chambrage et rondelle captive, en acier, cadmis, lubrifis MoS2 Classification : 1 100 MPa ( temprature ambiante) / 235 C Luft-und Raumfahrt Sechskantmuttern, selbstsichernd, mit Aussenkung und Brdelscheibe, aus Stahl, ver
10、kadmet, MoS2 geschmiert Klasse: 1 100 MPa (bei Raumtemperatur) / 235 C This European Standard was approved by CEN on 20 April 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national stan
11、dard 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 Standard exists in three official versions (English, French, German). A version in any other l
12、anguage 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 standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, Franc
13、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR
14、NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2882:2006: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Required characteristics.5 4 Designation
15、 7 5 Marking .7 6 Technical specification .7 EN 2882:20063 Foreword This European Standard (EN 2882:2006) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of this Association, t
16、his 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 endorsement, at
17、the latest by January 2007, and conflicting national standards shall be withdrawn at the latest by January 2007. 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
18、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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
19、 Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 2882:20064 1 Scope This standard specifies characteristics for hexagon nuts, with counterbore and captive washer, with a se
20、lf-locking feature achieved by forming the upper portion out-of-round, in steel, cadmium plated, MoS2lubricated, classification 1 100 MPa 1)/ 235 C 2)2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editi
21、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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 4
22、25 C Procurement specification. ISO 8538, Aerospace Nuts, hexagonal, self-locking, with counterbore and captive washer, with MJ threads, 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 87
23、88, Aerospace Nuts, metric Tolerances of form and position. EN 2133, Aerospace series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys. EN 2424, Aerospace series Marking of aerospace products. EN 2491, Aerospace series Molybdenum disulphide
24、 dry lubricants Coating methods. EN 2543, Aerospace series Steel FE-PL43S Annealed Sheet and strip 0,3 a 2 mm for prevailing torque nuts.3)EN 3329, Aerospace series Steel FE-PL45 Annealead Sheet and strip 0,3 a 2 mm for prevailing torque nuts. 3)EN 3330, Aerospace series Steel FE-PL45 Annealed Bar a
25、nd wire De 40 mm for prevailing torque nuts. 3)EN 9100, Aerospace series Quality management systems 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
26、 Quality management systems Qualification Procedure for aerospace standard parts. 1) Corresponds to strength class of the associated bolt, the 100 per cent load of which it is able to withstand, when tested at ambient temperature, without breaking or cracking. 2) Maximum temperature that the nut is
27、able to withstand, without permanent alteration of its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the cadmium plating. 3) Published as ASD Prestandard at the date of publication of this standard. EN 2882:20065 3 Required character
28、istics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. 3.2 Materials Nut : EN 3329 or EN 3330 Washer : EN 2543 or EN 3329 3.3 Surface treatment EN 2133, 5 m minimum on threads and all areas which can be contacted by a 20 mm diameter ball. On all other areas, a continuous cadmium platin
29、g shall be present. Nut only: EN 2491, thickness not specified. EN 2882:20066 Break sharp edges 0,1 mm to 0,4 mm 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. Tooling marks acceptable. 3 Thread 4 Chamfer, radius or b
30、roken edge 5 Marking aThese values, in micrometres, apply before cadmium plating and MoS2lubrication. The values do not apply to threads and sheared edges, the surface texture of which will be as achieved by usual manufacturing methods. Details of form, not stated, are at the manufacturers option. F
31、igure 1 a 1,6 6,3 EN 2882:20067 Table 1 Dimensions in millimetres E bFbG H J K cL M N dP Diameter code Thread a min. nom.tol. max. max. min. min. max. min. min. min.Mass kg/1 000 max. 030 MJ3 0,5 4H6H 4,2 4 6,7 4,6 3,4 5,2 3,8 1,2 1,6 0,4 040 MJ4 0,7 4H6H 5,3 5 8,4 6,2 4,4 6,4 4,8 0,4 1,5 2,2 0,85 0
32、50 MJ5 0,8 4H6H 6,5 6 9,6 7,4 5,5 7,6 5,8 2 2,4 1,15 060 MJ6 1 4H5H 7,6 7 11,1 8,1 6,5 9 6,8 2,3 1,6 070 MJ7 1 4H5H 8,7 8 h12 13,3 9 7,5 11 8 2,7 2,6 080 MJ8 1 4H5H 10,9 10 14,6 9,9 8,5 12 9 3,2 2,7 3,8 100 MJ10 1,25 4H5H 13,2 12 17,2 12 10,5 14,7 11 3,8 7,5 120 MJ12 1,25 4H5H 15,5 14 h13 21 13,8 12
33、,5 18,5 13 0,6 4,5 3 11 These dimensions are in accordance with ISO 8538. Tolerances of form and position shall be in conformity with ISO 8788. Dimensions and tolerances apply after cadmium plating but before MoS2lubrication. a In conformity with ISO 5855-2. In the self-locking zone, the tolerances
34、apply before forming out-of-round. b These dimensions apply before forming out-of-round, but finished nuts shall fit a standard socket wrench. Test conditions are quoted in the technical specification. c Bearing surface diameter of the washer. d Wrench pad engagement. 4 Designation EXAMPLE Descripti
35、on block NUT Identity block EN2882-050 Number of this standard Diameter code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style N. See Figure 1. 6 Technical specification ISO 5858 except for: approval of manu
36、facturers: EN 9100; qualification of nuts: EN 9133. EN 2882:2006BS EN 2882:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internation
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