1、BSI Standards Publication BS ISO 9609:2016 Aerospace 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 temperatu
2、re) /235 C, 900 MPa (at ambient temperature) /315 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 DimensionsBS ISO 9609:2016 BRITISH STANDARD National foreword This British
3、Standard is the UK implementation of ISO 9609:2016. It supersedes BS A 314:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems. A list of organizations represented on this committee can be obtained on
4、 request to 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 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 86449 0 ICS 49.030.30 Compliance with
5、a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2016. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO 9609:2016 ISO 2016 Aerospace Nu
6、ts, 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) /315 C, 90
7、0 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 INTERNATIONAL STANDARD ISO 9609 Second edition 2016-02-15 Reference number ISO 9609:2016(E)BS ISO 9609:2016ISO 9609:2016
8、(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or po
9、sting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax
10、 +41 22 749 09 47 copyrightiso.org www.iso.orgBS ISO 9609:2016ISO 9609:2016(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 Configuration and dimensions . 1 ISO 2016 All rights reserved iii Contents PageBS ISO 9609:2016ISO 9609:2016(E) Foreword ISO (the International Organization
11、 for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has
12、the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The pr
13、ocedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the edito
14、rial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent righ
15、ts identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an exp
16、lanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information. The committee responsible for this d
17、ocument is ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems. This second edition cancels and replaces the first edition (ISO 9609:1996), of which it constitutes a minor revision.iv ISO 2016 All rights reservedBS ISO 9609:2016ISO 9609:2016(E) Introduction The dime
18、nsions specified in this International Standard have been determined to satisfy the requirements of the procurement specification which will be the subject of a future International Standard. ISO 2016 All rights reserved vBS ISO 9609:2016BS ISO 9609:2016Aerospace Nuts, hexagonal, plain, reduced heig
19、ht, 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) /315 C, 900 MPa (at ambient temperature) /65
20、0 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 Scope This International Standard specifies the dimensions of plain, hexagonal nuts, reduced height, normal across flats, with MJ threads, of classifica
21、tions: 450 MPa/120 C, 450 MPa/235 C, 600 MPa/425 C, 900 MPa/235 C, 900 MPa/315 C, 900 MPa/650 C, 1 100 MPa/235 C, 1 100 MPa/730 C, and 1 250 MPa/600 C. NOTE 1 450 MPa, 600 MPa, 900 MPa, 1 100 MPa and 1 250 MPa corresponds to the minimum tensile stress which the nut is able to withstand at ambient te
22、mperature without breaking or cracking when tested with a bolt of a higher strength class. NOTE 2 120 C, 235 C, 425 C, 315 C, 650 C, 730 C and 600 C corresponds to the maximum temperature that the nut is able to withstand without permanent alteration to its original characteristics, after ambient te
23、mperature has been restored. The maximum temperature is conditioned by the surface treatment. Nuts provided with holes are intended to be used with lockwire in conformity with ISO 245. This International Standard is only applicable for the compilation of aerospace product standards. 2 Normative refe
24、rences 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) applies.
25、ISO 245, Aerospace Lockwire Diameters ISO 58552, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts ISO 8788, Aerospace Nuts, metric Tolerances of form and position 3 Configuration and dimensions See Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres. They app
26、ly after any surface coating(s) but before the application of any lubricant. INTERNATIONAL ST ANDARD ISO 9609:2016(E) ISO 2016 All rights reserved 1BS ISO 9609:2016ISO 9609:2016(E) N W E H V L M Key 1 thread a These values, in micrometers, apply before any surface coating(s) is/are applied. The valu
27、es do not apply to threads the surface texture of which will be as achieved by the usual manufacturing methods. b All forms of entry (chamfer or radius) permissible within these limiting dimensions. c Form of contour, within limiting dimensions, is left to the manufacturers discretion. Diameter M ma
28、y be tangential to, but shall not intrude on the flats. d Applicable to both faces. e From either face. f 2 holes U (optional). g Marking. NOTE Tolerances of form and position shall conform to those specified in ISO 8788. Figure 1 Configuration and dimensions2 ISO 2016 All rights reservedBS ISO 9609
29、:2016ISO 9609:2016(E)Table 1 Dimensions Dimensions in millimetres Diameter code Thread a E F H L M N U V W Lockwire diameter b min h14min. - H13 0,2 min. 040 MJ4 0,7 4H6H 7,6 7 h12 2,6 4,2 + 6,4 0,5 050 MJ5 0,8 4H6H 8,7 8 3,0 5,2 7,4 060 MJ6 1 4H5H 10,9 10 h13 3,5 6,3 + 9,3 1,0 3,9 1,4 0,8 070 MJ7 1
30、 4H5H 12,0 11 4,0 7, 3 10,2 4,4 1,6 080 MJ8 1 4H5H 14,3 13 8,3 12,2 5,0 100 MJ10 1,25 4H5H 18,9 17 5,0 10,3 16,0 0,6 1,5 6,9 2,1 1,25 120 MJ12 1,25 4H5H 21,1 19 6,0 12,3 18,0 8,0 2,6 140 MJ14 1,5 4H5H 24,5 22 7,0 14,4 21,0 9,6 3,1 160 MJ16 1,5 4H5H 26,8 24 8,0 16,4 23,0 10,7 3,6 180 MJ18 1,5 4H5H 30
31、,2 27 9,0 18,4 26,0 12,0 4,1 200 MJ20 1,5 4H5H 33,6 30 10,0 20,4 29,0 13,4 4,6 220 MJ22 1,5 4H5H 35,8 32 11,0 22,4 30,9 14,4 5,0 240 MJ24 2 4H5H 40,4 36 12,0 24,5 34,9 16,1 5,5 aIn accordance with ISO 5855-2. bFor information, in conformity with ISO 245. ISO 2016 All rights reserved 3BS ISO 9609:201
32、6ISO 9609:2016(E) ISO 2016 All rights reserved ICS 49.030.30 Price based on 3 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services. BSI is incorporated by Royal Charter. British S
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