1、BS EN 3753:2010ICS 49.030.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts, anchor,self-locking, fixed,60 corner, withcounterbore, in alloysteel, cadmium plated,MoS2 lubricated Classification: 1 100MPa (at ambienttemperature) / 235 CThis B
2、ritish Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 March2010 BSI 2010ISBN 978 0 580 70743 8Amendments/corrigenda issued since publicationDate CommentsBS EN 3753:2010National forewordThis British Standard is the UK implementation of EN 3753:2010.The UK
3、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 a contra
4、ct. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 3753:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3753 February 2010 ICS 49.030.30 English Version Aerospace series - Nuts, anchor, self-locking, fi
5、xed, 60 corner, with counterbore, in alloy steel, cadmium plated, MoS2lubricated - Classification: 1 100 MPa (at ambient temperature) / 235 C Srie arospatiale - crous river, freinage interne, fixes, dangle 60, avec chambrage, en acier alli, cadmis, lubrifis MoS2- Classification : 1 100 MPa ( temprat
6、ure ambiante) / 235 C Luft- und Raumfahrt - Annietmuttern, selbstsichernd, 60 Eckflansch, mit zylindrischer Aussenkung, aus legiertem Stahl, verkadmet, MoS2-geschmiert - Klasse: 1 100 MPa (bei Raumtemperatur) / 235 C This European Standard was approved by CEN on 4 December 2009. CEN members are boun
7、d 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 the CE
8、N 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 same stat
9、us as the official 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
10、, Romania, 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 2010 CEN All rights of exploitation in any form and by any means res
11、erved worldwide for CEN national Members. Ref. No. EN 3753:2010: EBS EN 3753:2010EN 3753:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .54 Designation 75 Marking .86 Technical specification .8BS EN 3753:2010EN 3753:2010 (E) 3 Foreword This document (E
12、N 3753:2010) 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 Ser
13、vices 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 August 2010, and conflicting national standards shall be withdrawn at the la
14、test by August 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 s
15、tandards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norwa
16、y, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 3753:2010EN 3753:2010 (E) 4 1 Scope This standard specifies the characteristics of 60 corner, counterbored fixed anchor nuts, with a self-locking feature achieved by forming the upper portion o
17、ut-of-round, in alloy 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 edition cited applies. For undated references, the la
18、test edition 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, Aerospace series Marking of aerospace products EN 2491, Aerospace series Molybde
19、num 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-PL1502 (25CrMo4) Annealed Sheet and strip 0,3 a 2 mm For prevailing torque nuts EN 9100, Quality Management S
20、ystems Requirements for Aviation, Space and Defense Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts ISO 5858, Aerospace Nuts, self-locking, with maximu
21、m operating temperature less than or equal to 425 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 strengt
22、h class of the associated bolt, the 100 % load 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 bee
23、n restored. The maximum temperature is conditioned by the surface treatment. 3) Published as ASD-STAN Technical Report at the date of publication of this standard. BS EN 3753:2010EN 3753:2010 (E) 5 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions an
24、d tolerances are expressed in millimetres and apply after cadmium plating but before MoS2lubrication. Form and position tolerances shall be in conformity with ISO 8788. 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 cont
25、acted by a 20 mm diameter ball. On all other surfaces a continuous deposit shall be present, plus EN 2491, thickness not specified. BS EN 3753:2010EN 3753:2010 (E) 6 These values in micrometres apply before surface treatment. The values do not apply to threads and sheared edges the surface texture o
26、f which will be achieved by usualmanufacturing methods. Remove sharp edges 0,1 to 0,4. Details of form not stated are at the manufacturers option. 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. 5 Bearing
27、face of the nut 6 Alternatives: countersunk rivet holes (when specified by purchaser) may be dimpled or cut countersunk (at manufacturers option). Figure 1 6,3 3,2 6 BS EN 3753:2010EN 3753:2010 (E) 7 Table 1 Diameter code Thread a E F G H J b K L M N c R S V W Mass kg/1 000 pieces approx. min.min. m
28、ax. max. max. max. max. 0,25 030 MJ30,5-4H6H 6 6 dd 4,6 3 10,9 3,2 1 2,5 2,54,811 0,55 040 MJ40,7-4H6H 8,5 8,5 4,4 2,2 6,2 4 14,6 5,8 314,5 1,30 050 MJ50,8-4H6H 9,5 9,5 5,5 2,4 7,3 4,5 15,9 6,9 15,5 1,60 060 MJ61-4H5H 11116,5 2,78,7 5 18,2 8,1 1,2 3,518 2,40 080 MJ81-4H5H 8,5 10,9 6,5 19,7 9,9 1,5 3
29、 5,7 5,40 100 MJ101,25-4H5H 13 13 10,5 3 12,9 8,1 24,1 12 1,6 4,5 3,5 6,6 22 8,60 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. d
30、Diameter code 030 does not have counterbore. 4 Designation EXAMPLE Description block NUT Identity block EN3753060 Number of this standard Hole code (see Table 2) Diameter code (see Table 1) NOTE If necessary the originator code I9005 shall be placed between the description block and the identity blo
31、ck. Table 2 Option Code Plain rivet holes (hyphen) Dimpled or countersunk rivet holesK BS EN 3753:2010EN 3753:2010 (E) 8 5 Marking EN 2424, style N. See Figure 1. 6 Technical specification ISO 5858, except for: Approval of manufacturers: see EN 9100; Qualification of products: see EN 9133. BS EN 375
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