1、BS EN 3229:2009ICS 49.030.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts, hexagonal,plain, reduced height,normal across flats, insteel, cadmium plated,left hand thread Classification: 900MPa (at ambienttemperature) / 235 CThis British St
2、andardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 January2010 BSI 2010ISBN 978 0 580 70135 1Amendments/corrigenda issued since publicationDate CommentsBS EN 3229:2009National forewordThis British Standard is the UK implementation of EN 3229:2009.The UK partici
3、pation 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. Use
4、rs are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 3229:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3229 December 2009 ICS 49.030.30 English Version Aerospace series - Nuts, hexagonal, plain, reduced heigh
5、t, normal across flats, in steel, cadmium plated, left hand thread - Classification: 900 MPa (at ambient temperature) / 235 C Srie arospatiale - crous hexagonaux ordinaires, hauteur rduite, surplats normaux, en acier, cadmis, filetage gauche - Classification : 900 MPa ( temprature ambiante) / 235 C
6、Luft- und Raumfahrt - Flache Sechskantmuttern, mit normaler Schlsselweite, aus Stahl, verkadmet, Linksgewinde - Klasse: 900 MPa (bei Raumtemperatur) / 235 C This European Standard was approved by CEN on 29 September 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations whic
7、h 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 CEN Management Centre or to any CEN member. This European St
8、andard 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 status as the official versions. CEN members are the national
9、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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and Unite
10、d 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 reserved worldwide for CEN national Members. Ref. No. EN 3229:2009: EB
11、S EN 3229:2009EN 3229:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .54 Designation 75 Marking .86 Technical specification .8BS EN 3229:2009EN 3229:2009 (E) 3 Foreword This document (EN 3229:2009) has been prepared by the Aerospace and Defence Industr
12、ies 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 Services of the member countries of ASD, prior to its presentation to
13、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 June 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. Attention is drawn to the possibility that some of
14、 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 standards organizations of the following countries are bound to implemen
15、t 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, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and
16、 the United Kingdom. BS EN 3229:2009EN 3229:2009 (E) 4 1 Scope This European Standard specifies the characteristics of plain, hexagonal nuts, reduced height, normal across flats, with left hand thread, in steel, cadmium plated. Classification: 900 MPa 1) / 235 C. 2) 2 Normative references The follow
17、ing 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) applies. EN 2133, Aerospace series Cadmium plating of steels with sp
18、ecified tensile strength 1 450 MPa, copper, copper alloys and nickel alloysEN 2205, Aerospace series Steel FE-PL1502 (25CrMo4) 900 MPa Rm 1 100 MPa Bars De 40 mm EN 2424, Aerospace series Marking of aerospace products EN 2438, Aerospace series Steel FE-PL2102 (35NiCr6) 900 MPa Rm 1 100 MPa Bars De 4
19、0 mm EN 2444, Steel FE-PL711 900 MPa Rm 1 100 MPa Bars and wires De 45 mm 3)EN 2448, Aerospace series Steel FE-PL1503 (35CrMo4) 900 MPa Rm 1 100 MPa Bars De 40 mmEN 3513, Aerospace series Steel FE-PL711 Hardened and tempered 900 Rm 1 100 MPa Bar and wire De 45 mm 4)EN 9100, Quality Management System
20、s Requirements for Aviation, Space and Defense Organizations ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts ISO 8788, Aerospace Nuts, metric Tolerances of form and position ISO 9139, Aerospace Nuts, plain or slotted (castellated) Procurement specification ISO 9609, Aero
21、space Nuts, hexagonal, plain, reduced height, normal across flats, with MJ threads, classifications: 450 MPa (at ambient temperature) /120 C, 450 MPa (at ambient temperature) /235 C, 600 MPa (at ambient temperature) /425 C, 900 MPa (at ambient temperature) /235 C, 900 MPa (at ambient temperature) /3
22、15 C, 900 MPa (at ambient temperature) /650 C, 1 100 MPa (at ambient temperature) / 235 C, 1 100 MPa (at ambient temperature) /730 C and 1 250 MPa (at ambient temperature)/600 C Dimensions 1) Corresponds to strength class of the associated bolt, the 100 % load of which it is able to withstand, when
23、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 conditioned by the surface treatment. 3) Inacti
24、ve for new design. See EN 3513. 4) Published as ASD Prestandard at the date of publication of this standard. BS EN 3229:2009EN 3229:2009 (E) 5 TR 3823, Aerospace series Materials for plain, slotted and self-locking by plastic ring hexagonal nuts 5) 3 Required characteristics 3.1 Configuration Dimens
25、ions Masses See Figure 1 and Table 1. Dimensions and tolerances are in conformity with ISO 9609, expressed in millimetres and apply after surface treatment. 3.2 Materials EN 2205, EN 2438, EN 2444, EN 2448 or TR 3823. 3.3 Surface treatment EN 2133, 5 m minimum on threads and all surfaces which can b
26、e contacted by a 20 mm diameter ball. On all other surfaces, a continuous cadmium plating shall be present. 5) Published as ASD Technical Report at the date of publication of this standard. BS EN 3229:2009EN 3229:2009 (E) 6 These values in micrometres, apply before surface treatment. The values do n
27、ot applyto threads the surface texture of which shall be achieved by usual manufacturing methods. Break sharp edges 0,1 to 0,4. Details of form not stated are at the manufacturers option. Tolerances of form and position shall be in conformity with ISO 8788. Dimensions in millimetres Key 1 Thread 2 M
28、arking 3 Two holes U optional 4 r = 0,2 to 0,5 aFrom either face. bDiameter M may be tangential to, but shall not intrude on the flats. cApplicable to both faces. dAll forms of entry (chamfer or radius) optional within these limiting dimensions. Figure 1 6,3 1,6 The groove bottomshall not extend com
29、pletely across the flats Marking for left hand thread BS EN 3229:2009EN 3229:2009 (E) 7 Table 1 Diameter code Left hand thread aE F H L M N U V W Mass kg/1 000piecesapprox. min. Nom. Tol. h14 Nom. Tol. min. max. min. H13 0,2 min. 040 MJ40,7-4H6H-LH 7,6 7 h12 2,6 4,2 + 0,60 6,4 0,5 0,2 bbb0,65 050 MJ
30、50,8-4H6H-LH 8,7 8 3 5,2 7,4 0,9 060 MJ61-4H5H-LH 10,9 10 h13 3,5 6,3 + 0,80 9,3 1 3,9 1,4 1,6 070 MJ71-4H5H-LH 12 11 4 7,3 10,2 4,4 1,6 2,1 080 MJ81-4H5H-LH 14,3 13 8,3 12,2 5 3,1 100 MJ101,25-4H5H-LH 18,9 17 5 10,3 16 0,6 0,3 1,5 6,9 2,1 6,9 120 MJ121,25-4H5H-LH 21,1 19 6 12,3 18 8 2,6 9,7 140 MJ1
31、41,5-4H5H-LH 24,5 22 7 14,4 21 9,6 3,1 15 160 MJ161,5-4H5H-LH 26,8 24 8 16,4 23 10,7 3,6 19,4 180 MJ181,5-4H5H-LH 30,2 27 9 18,4 26 12 4,1 27 200 MJ20x1,5-4H5H-LH 33,6 30 10 20,4 29 13,4 4,6 37 220 MJ221,5-4H5H-LH 35,8 32 11 22,4 30,9 14,4 5 49 240 MJ242-4H5H-LH 40,4 36 12 24,5 34,9 16,1 5,5 65 aIn
32、accordance with ISO 5855-2. b Lockwire holes not provided for these diameters. 4 Designation EXAMPLE Description block NUT Identity block EN3229H060 Number of this standard Hole code (see Table 2) Diameter code (see Table 1) NOTE If necessary the originator code I9005 should be placed between the de
33、scription block and the identity block. Table 2 Option Code Lockwire holes H No hole (hyphen) BS EN 3229:2009EN 3229:2009 (E) 8 5 Marking See Table 3. Table 3 Diameter code EN 2424 Style 040 to 070 N 080 to 160 C 180 to 240 A 6 Technical specification ISO 9139 except for approval of manufacturers: s
34、ee EN 9100. BS EN 3229:2009This page has been intentionally left blank BS EN3229:2009BSI 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
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