《ISO-3224-1998.pdf》由会员分享，可在线阅读，更多相关《ISO-3224-1998.pdf（8页珍藏版）》请在三一文库上搜索。
1、A Reference number ISO 3224:1998(E) INTERNATIONAL STANDARD ISO 3224 Second edition 1998-11-15 Aerospace Nuts, anchor, self-locking, floating, single lug, with counterbore, with MJ threads, classifications: 1 100 MPa (at ambient temperature)/235 C, 1 100 MPa (at ambient temperature)/315 C and 1 100 M
2、Pa (at ambient temperature)/425 C Dimensions Aronautique et espace crous river, freinage interne, flottants, simple patte, avec chambrage, filetage MJ, classifications: 1 100 MPa ( temprature ambiante)/235 C, 1 100 MPa ( temprature ambiante)/315 C et 1 100 MPa ( temprature ambiante)/425 C Dimensions
3、 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:16:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3224:1998(E) ISO 1998 All rights reserved.
4、 Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 CH-1211
5、 Genve 20 Switzerland Internetisoiso.ch Printed in Switzerland ii Foreword ISO (the International Organization 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
6、committees. Each member body interested in a subject for which a technical committee has been established has 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
7、 the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the m
8、ember bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 3224 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems. This se
9、cond edition cancels and replaces the first edition (ISO 3224:1985), which has been technically revised. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:16:13 MDTNo reproducti
10、on or networking permitted without license from IHS -,-,- ISOISO 3224:1998(E) iii Introduction The dimensions specified in this International Standard have been determined to allow production of a part which will satisfy the requirements of the procurement specification ISO 5858. Copyright Internati
11、onal Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:16:13 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided
12、by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:16:13 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISOISO 3224:1998(E) 1 Aerospace Nuts, anchor, self-locking, floating, single lug, with cou
13、nterbore, with MJ threads, classifications: 1 100 MPa (at ambient temperature)/235 C, 1 100 MPa (at ambient temperature)/315 C and 1 100 MPa (at ambient temperature)/425 C Dimensions 1 Scope This International Standard specifies the dimensions of self-locking, floating, single lug anchor nuts, with
14、counterbore, with MJ threads, of classifications: 1 100 MPa 1)/235 C 2), 1 100 MPa 1)/315 C 2) and 1 100 MPa 1)/425 C 2). This International Standard is only applicable for the compilation of aerospace product standards. 2 Normative references The following normative documents contain provisions whi
15、ch, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the pos
16、sibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 5855-2:1988, Aerospace MJ thre
17、ads Part 2: Limit dimensions for bolts and nuts. ISO 5858:1991, Aerospace Self-locking nuts with maximum operating temperature less than or equal to 425 C Procurement specification. ISO 8788:1987, Aerospace Fasteners Tolerances of form and position for nuts. 3 Configuration and dimensions See Figure
18、 1 and Table 1. Dimensions and tolerances are expressed in millimetres. They apply after any surface coating(s) but before the application of any lubricant. The metallic cap (optional) shall remain joined to the nut at the maximum operating temperature (type of attachment at the users discretion). S
19、ee ISO 5858 for the test conditions. _ 1) Corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without breaking or cracking when tested with a bolt of a higher strength class. 2) Maximum temperature that the nut is able to withstand, without permanent a
20、lteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not
21、for Resale, 04/25/2007 23:16:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3224:1998(E) ISO 2 Tolerances of form and position shall conform to those specified in ISO 8788. Details of form not stated are at the manufacturers discretion. a These values, in micrometre
22、s, apply before any surface coating(s) is (are) applied. The values do not apply to threads, punched holes or shear edges the surface texture of which will be as achieved by the usual manufacturing methods. b Tooling marks permissible in this area Figure 1 Copyright International Organization for St
23、andardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:16:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 3224:1998(E) 3 Table 1 Diameter code Thread aCDEFGHJ bKLMNP cQRSTVWRadial float Z m
24、ax. max.min.min.max.max.max.max. max.max.max.max.max. 0,25min.min. 030 040 050 060 080 100 MJ3 0,5-4H6H MJ4 0,7-4H6H MJ5 0,8-4H6H MJ6 1-4H5H MJ8 1-4H5H MJ10 1,25-4H5H _ 0,4 0,5 6,6 8,1 9,2 12,8 15 8,5 9,5 11 13 8 8,5 _ 4,4 5,5 6,5 8,5 10,5 _ 2,2 2,4 2,7 3 4,6 6,2 7,3 8,7 10,9 12,9 11 12 13,5 16 18 2
25、6,5 27,5 30 32,7 36,7 4 5,8 6,9 8,1 9,9 12 0,9 1,1 _ 11 11,4 12,7 15 20,2 _ 13 13,4 14,7 18 22 3,5 4 5 2,5 3 3,5 4,5 4,6 5,5 6 4,8 5,7 6,6 4,5 5,5 6,5 7,5 9,5 11,5 0,5 0,7 0,75 a In accordance with ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. b Measured at
26、sharp corners (chamfered) or point of tangency (radiused) c Maximum protrusion of the bolt Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:16:13 MDTNo reproduction or networki
27、ng permitted without license from IHS -,-,- ISO 3224:1998(E) ISO ICS 49.030.30 Descriptors: aircraft industry, fasteners, MJ threads, nuts (fasteners), anchor nuts, self-locking nuts, single-lug nuts, floating nuts, counterbore nuts, classification, form specifications, dimensions. Price based on 3 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:16:13 MDTNo reproduction or networking permitted without license from IHS -,-,-