1、BS EN 4309:2016Aerospace series Nuts,hexagon, self-locking byplastic ring, normal height,normal across flats, in alloysteel, cadmium plated Classification: 900 MPa (atambient temperature) / 120 CBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 4309:2016 BRITISH
2、STANDARDNational forewordThis British Standard is the UK implementation of EN 4309:2016. 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 on request to
3、its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 92617 4 ICS 49.030.30 Compliance with a British Stand
4、ard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 4309:2016EUROPEAN STANDARD NORME EUROPENNE EUROP
5、ISCHE NORM EN 4309 December 2016 ICS 49.030.30 English Version Aerospace series - Nuts, hexagon, self-locking by plastic ring, normal height, normal across flats, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature) / 120 C Srie arospatiale - crous hexagonaux, freinage i
6、nterne par bague plastique, hauteur normale, surplats normaux, en acier alli, cadmis - Classification : 900 MPa ( temprature ambiante) / 120 C Luft- und Raumfahrt - Sechskantmuttern, selbstsichernd mit Plastikring, mit normaler Schlsselweite, aus legiertem Stahl, verkadmet - Klasse: 900 MPa (bei Rau
7、mtemperatur) / 120 C This European Standard was approved by CEN on 11 March 2016. 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 standard without any alteration. Up-to-date lists and
8、bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 re
9、sponsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav
10、Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NO
11、RMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4309:2016 EBS EN 4309:2016EN 4309:2016 (E) 2 Contents Page European fo
12、reword 3 1 Scope 4 2 Normative references 4 3 Required characteristics 4 4 Designation . 6 5 Marking . 7 6 Technical specification . 7 BS EN 4309:2016EN 4309:2016 (E) 3 European foreword This document (EN 4309:2016) has been prepared by the Aerospace and Defence Industries Association of Europe - St
13、andardization (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 Services of the member countries of ASD, prior to its presentation to CEN. This European Standard sh
14、all be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2017, and conflicting national standards shall be withdrawn at the latest by June 2017. Attention is drawn to the possibility that some of the elements of this document
15、 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 standards organizations of the following countries are bound to implement this European Standard: Aust
16、ria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swede
17、n, Switzerland, Turkey and the United Kingdom. BS EN 4309:2016EN 4309:2016 (E) 4 1 Scope This European Standard specifies the characteristics of hexagonal nuts, self-locking by plastic ring, normal height, normal across flats, in alloy steel, cadmium plated. Classification: 900 MPa 1)/ 120 C 2)2 Nor
18、mative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments
19、) applies. EN 2424, Aerospace series Marking of aerospace products EN 2133, Aerospace series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys EN 9100, Aerospace series Quality Management Systems Requirements for Aviation, Space and Defence
20、Organizations EN 9133, Aerospace series Quality Management Systems Qualification Procedure for Aerospace Standard Products 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
21、 C Procurement specification ISO 8788, Aerospace Nuts, metric Tolerances of form and position TR 3823, Aerospace series Materials for plain, slotted and self-locking by plastic ring hexagonal nuts 3) 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions
22、and tolerances are expressed in millimetres and apply after surface treatment. Details of form not stated are at the manufacturers option. 3.2 Tolerances of form and position ISO 8788 1) Corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without break
23、ing or cracking when tested with a bolt of a higher strength class. 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 conditioned by the plastic ring. 3) Publ
24、ished as ASD-STAN Technical Report at the date of publication of this standard by AeroSpace and Defence industries Association of Europe - Standardization (ASD-STAN) (www.asd-stan.org) BS EN 4309:2016EN 4309:2016 (E) 5 3.3 Materials Threaded element: TR 3823. Plastic ring: polyamide 6.6. 3.4 Surface
25、 treatment EN 2133, 5 m min. on threads and all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces, a continuous deposit shall be present. These values in micrometres apply before surface treatment. They do not apply to threads the surface texture of which will be as ach
26、ieved by usual manufacturing methods. Remove sharp edges 0,1 to 0,4. Key 1 90 to 120 a2 Thread 3 Threaded element 4 Plastic ring 5 Marking a All forms of entry (chamfer or radius) option within these limiting dimensions. b Form of contour within these limiting dimensions is at the manufacturers opti
27、on. Diameter M may be tangential to, but shall not intrude on the flats. Figure 1 Ramax 1,6 BS EN 4309:2016EN 4309:2016 (E) 6 Table 1 Diameter code Thread a E F H L M N P T Mass b min. Nom. Tol. max. Nom. Tol. min. max. min. min. min. 020 MJ2x0,4-4H6H 4,2 4 h12 3,2 2,2 +0,6 0 3,4 0,4 0,2 1 1,3 0,16
28、025 MJ2,5x0,45-4H6H 5,3 5 4 2,7 4,4 1,4 1,6 0,37 030 MJ3x0,5-4H6H 6,5 6 4,5 3,2 5,4 1,8 2 0,48 040 MJ4x0,7-4H6H 7,6 7 5,6 4,2 6,4 0,5 2,4 2,6 0,98 050 MJ5x0,8-4H6H 8,7 8 6,2 5,2 7,4 3,2 3,2 1,36 060 MJ6x1-4H5H 10,9 10 h13 7,5 6,3 +0,8 0 9,3 4 3,9 2,66 070 MJ7x1-4H5H 12 11 8,8 7,3 10,2 4,8 4,6 3,45 0
29、80 MJ8x1-4H5H 14,3 13 10 8,3 12,2 5,5 5,2 6,03 100 MJ10x1,25-4H5H 18,9 17 11,5 10,3 16 0,6 0,3 7 6,5 12 120 MJ12x1,25-4H5H 21,1 19 13,8 12,3 18 8,6 7,8 18,2 140 MJ14x1,5-4H5H 24,5 22 16,1 14,4 21 10,2 9,1 26,9 160 MJ16x1,5-4H5H 26,8 24 18,4 16,4 23 11,8 10,4 33,4 180 MJ18x1,5-4H5H 30,2 27 20,7 18,4
30、26 13,4 11,7 50,6 200 MJ20x1,5-4H5H 33,6 30 23 20,4 29 15 13 71,6 220 MJ22x1,5-4H5H 35,8 32 25,3 22,4 30,9 16,4 14,3 82 240 MJ24x2-4H5H 40,4 36 27,6 24,5 34,9 18,1 15,6 120 aIn accordance with ISO 5855-2. bApproximate values (kg/1 000 pieces), given for information purposes only. 4 Designation EXAMP
31、LE Description block NUT Identity block EN4309-050 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. BS EN 4309:2016EN 4309:2016 (E) 7 5 Marking EN 2424, style N. See Figure 1. 6 Technical speci
32、fication ISO 5858, except for: Approval of manufacturers: see EN 9100; Qualification of products: see EN 9133. This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information
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