1、BS EN 2866:2009ICS 49.030.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts, anchor, self-locking, floating,one lug, withcounterbore, in steel,cadmium plated,MoS2 lubricated Classification: 1 110MPa (at ambienttemperature) / 235 CThis Briti
2、sh Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 June2010 BSI 2010ISBN 978 0 580 68568 2Amendments/corrigenda issued since publicationDate CommentsBS EN 2866:2009National forewordThis British Standard is the UK implementation of EN 2866:2009.The UK parti
3、cipation 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 a contract. U
4、sers are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 2866:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2866 November 2009 ICS 49.030.30 English Version Aerospace series - Nuts, anchor, self-locking, floatin
5、g, one lug, with counterbore, in steel, cadmium plated, MoS2 lubricated - Classification: 1 110 MPa (at ambient temperature) / 235 C Srie arospatiale - crous river, freinage interne, flottants, simple patte, avec chambrage, en acier, cadmis, lubrifis MoS2 - Classification : 1 110 MPa ( temprature am
6、biante) / 235 C Luft- und Raumfahrt - Gehuse-Annietmuttern, selbstsichernd, beweglich, einseitiger Flansch, mit zylindrischer Aussenkung, aus Stahl, verkadmet, MoS2-geschmiert - Klasse: 1 110 MPa (bei Raumtemperatur)/235 C This European Standard was approved by CEN on 17 October 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 2866:2009: EBS EN 2866:2009EN 2866:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Required characteristics .5 4 Designation 7 5 Marking .7 6 Technical specification .7 BS EN 2866:2009EN 2866:2009 (E) 3 Foreword This documen
12、t (EN 2866:2009) 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 May 2010, and conflicting national standards shall be withdrawn at the l
14、atest by May 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 national sta
15、ndards 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, Poland,
16、Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 2866:2009EN 2866:2009 (E) 4 1 Scope This European Standard specifies the characteristics of one lug, floating anchor nuts, with counterbore and self-locking feature achieved by forming the upper portion o
17、ut-of-round, in steel, cadmium plated, MoS2lubricated. Classification: 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 e
18、dition of the referenced document (including any amendments) applies. EN 2133, Aerospace series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys EN 2424:2008, Aerospace series Marking of aerospace products EN 2491, Aerospace series Molybden
19、um disulphide dry lubricants Coating methods EN 2542, Aerospace series Steel FE-PL1502 (25CrMo4) Annealed Bar and wire De 40 mm For prevailing torque nuts EN 2543, Aerospace series Steel FE-PL43S Annealed Sheet and strip 0,3 a 2 mm For prevailing torque nuts EN 9100, Quality Management Systems Requi
20、rements for Aviation, Space and Defense Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts ISO 3224, Aerospace Nuts, anchor, self-locking, floating, single lug, with counterbore, with MJ threads, classifications: 1 100 MPa (at ambi
21、ent temperature)/ 235 C, 1 100 MPa (at ambient temperature)/ 315 C and 1 100 MPa (at ambient temperature)/ 425 C Dimensions 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 42
22、5 C Procurement specification ISO 8788, Aerospace Nuts, metric Tolerances of form and position TR 3791, Aerospace series Materials for self-locking nuts, threaded inserts and screw thread inserts of temperature classes 425 C 3) 1) Corresponds to strength class of the associated bolt, the 100 % load
23、of which it is able to withstand, when tested at ambient temperature, without breaking or cracking. 2) Maximum temperature that the nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditio
24、ned by the surface treatment. 3) Published as ASD-STAN Technical Report at the date of publication of this standard. BS EN 2866:2009EN 2866:2009 (E) 5 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are in conformity with ISO 3224, e
25、xpressed in millimetres and apply after cadmium plating but before MoS2lubrication. 3.2 Materials EN 2542, EN 2543 or TR 3791. 3.3 Surface treatment EN 2133, 5 m minimum on threads and all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces a continuous cadmium plating sh
26、all be present, plus EN 2491, thickness not specified. These values in micrometres apply before surface treatment. The values do notapply to threads and sheared edges the surface texture of which will be achievedby usual manufacturing methods. Break sharp edges 0,1 to 0,4. Details of form, not state
27、d, are at the manufacturers option. Tolerances of form and position shall be in conformity with ISO 8788. 6,3 3,2 BS EN 2866:2009EN 2866:2009 (E) 6 Key 1 Marking 2 Float inclusive 3 Cage 4 Threaded element 5 Form out-of-round in this area to achieve the self-locking. Tooling marks are permitted in t
28、his area. 6 Thread 7 Bearing face of the nut 8 Radius or chamfer Figure 1 Alternatives: countersunk rivet holes (when specified by purchaser) may be dimpled or cut countersunk (at manufacturers option). BS EN 2866:2009EN 2866:2009 (E) 7 Table 1 Diameter code Thread aE F GHJbK L M NcP R S T VZ Masskg
29、/1 000piecesapprox.Radial float min.min.max. max. max. max. max. min. max. max 0,25 min. 030 MJ30,5-4h6h 8,5 8 dd4,6 11 26,54 0,9 4,53,5 2,5 4,5 4,8 0,5 1,8 040 MJ40,7-4h6h 4,4 2,2 6,2 5,8 5,5 2 050 MJ50,8-4h6h 9,5 5,5 2,4 7,3 12 27,5 6,9 6,50,7 2,3 060 MJ61-4h5h 11 6,5 2,7 8,7 13,5 30 8,1 7,54 4,6
30、3,8 080 MJ81-4h5h 8,5 8,5 10,9 16 32,7 9,9 1,1 9,5 3 5,5 5,7 0,75 7,3 100 MJ101,25-4h5h 13 10,5 3 12,9 18 36,7 12 11,5 5 3,5 6 6,6 10 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 (rad
31、iused). cIs applicable at the rivet hole location. dDiameter code 030 does not have a counterbore. 4 Designation EXAMPLE Description block NUT Identity block EN2866050 Number of this standard Code (see Table 2) Diameter code (see Table 1) NOTE If necessary the originator code I9005 shall be placed b
32、etween the description block and the identity block. Table 2 Option Code Plain rivet hole (hyphen) Countersunk or dimpled rivet holes K 5 Marking EN 2424:2008, style N. See Figure 1. 6 Technical specification ISO 5858, except for: Approval of manufacturers: see EN 9100; Qualification of products: se
33、e EN 9133. BS EN2866:2009BSI 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 Europe and at thei
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