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BS A 315:1997 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 temperature)/235 °C, 900 MPa (at ambient temperature)/315 °C, 900 MPa (at ambient temperature)/650 °C, 1100 MPa (at ambient temperature)/235 °C, 1100 MPa (at ambient temperature)/730 °C and 1250 MPa (at ambient temperature)/ 600 °C - Dimensions

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This International Standard specifies the dimensions of hexagon slotted (castellated) nuts, reduced height, normal across flats, with MJ threads, of classifications 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. These nuts are intended to be used with split pins in conformity with ISO 1234. This International Standard is only applicable for the compilation of aerospace product standards..
Primary Item Type:
British Standard
Identifiers:
ICS 49.030.30 Nuts
ISBN 0 580 26693 1
Language:
English
Subject Keywords:
MJ threads; Nuts; Designations; Dimensions; Temperature; Classification systems; Aircraft components; Threads; Diameter; Tensile strength; Fasteners
First presented to the public:
6/25/2026
Original Publication Date:
8/15/1997
Previously Published By:
British Standards Institution
Citation:
Extents:
Number of Pages - 3
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2026-06-25 18:40:35.291
Submitter:
Engku Shahidil Engku Ab Rahman

All Versions

Thumbnail Name Version Created Date
BS A 315:1997 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 temperature)/235 °C, 900 MPa (at ambient temperature)/315 °C, 900 MPa (at ambient temperature)/650 °C, 1100 MPa (at ambient temperature)/235 °C, 1100 MPa (at ambient temperature)/730 °C and 1250 MPa (at ambient temperature)/ 600 °C - Dimensions1 2026-06-25 18:40:35.291