ISO-12268-1997.pdf
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1、INTERNATIONAL STANDARD IS0 12268 First edition 1997-08-01 Aerospace - Nuts, hexagonal, plain, reduced height, reduced across flats, with MJ threads, classifications: 450 MPa (at ambient temperature)/425 “C, 600 MPa (at ambient temperature)/235 “C, 600 MPa (at ambient temperature)/315 OC, 600 MPa (at
2、 ambient temperature)/650 “C, 900 MPa (at ambient temperature)/235 OC, 900 MPa (at ambient temperature)/730 OC and 1 100 MPa (at ambient temperature)/600 “C - Dimensions Akronautique et espace - a p=iso; o=isocs; s=central Printed in Switzerland ii Copyright International Organization for Standardiz
3、ation Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:26:39 MDTNo reproduction or networking permitted without license from IHS -,-,- 0 IS0 IS0 12268:1997(E) Introduction The dimensions specified in this International Standard have
4、been determined to satisfy the requirements of the procurement specification of IS0 9139. . III Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:26:39 MDTNo reproduction or net
5、working permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:26:39 MDTNo reproduction or networking permitted without license from IHS -,-,
6、- INTERNATIONAL STANDARD o ISO IS0 12268: 1997(E) Aerospace - Nuts, hexagonal, plain, reduced height, reduced across flats, with MJ threads, classifications: 450 MPa (at ambient temperature)/425 C, 600 MPa (at ambient temperature)/235 C, 600 MPa (at ambient temperature)/315 C, 600 MPa (at ambient te
7、mperature)/650 C, 900 MPa (at ambient temperature)/235 C, 900 MPa (at ambient temperature)/730 C and 1 100 MPa (at ambient temperature)/600 C - Dimensions 1 Scope This International flats. with MJ Standard specifies the dimensions of plain, hexagonal nuts, reduced height, reduced across threads, of
8、classifications: 450 MPa )/425 Cs), 600 MPa )/235 Cs), 600 MPaV315 Cs), 600 MPaV650 Cs), 900 MPaW235 Cs), 900 MPalV730 Cs) and 1 100 MPal)/GOO Cs). Nuts provided with holes are intended to be used with lockwire in conformity with IS0 245. This International Standard is only applicable for the compil
9、ation of aerospace product standards. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, a
10、nd parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 245:1986, Aircraft - Lockwire.
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