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ISO 3221:1998

Current Revision

Aerospace - Nuts, anchor, self-locking, fixed, 90 degrees corner, with counterbore, with MJ threads, classifications: 1 100 MPa (at ambient temperature)/235 degrees C, 1 100 MPa (at ambient temperature)/315 degrees C and 1 100 MPa (at ambient temperature)/425 degrees C - Dimensions

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This International Standard specifies the dimensions of self-locking, fixed, 90° corner anchor nuts, with counterbore, with MJ threads, of classifications: 1100 MPa 1)/235 °C 2), 1100 MPa 1)/315 °C 2) and 1100 MPa 1)/425 °C 2).

This International Standard is only applicable for the compilation of aerospace product standards.

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 alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment.


SDO ISO: International Organization for Standardization
Document Number ISO 3221
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 20/SC 4/WG 4
Publish Date Document Id Type View
Not Available ISO 3221:1998 Revision