AIA/NAS NAS 1258-1977
Bolt, 100 Degree Flush Head Hi-Torque Recess, .0312 Oversize Short Thread, Alloy Steel, 160,000 psi (Superseded March 1977 Use NAS 1790 and NAS 380) (Rev. 6) [Use: AIA/NAS NAS 380, AIA/NAS NAS 380, AIA/NAS NAS 1790]

Standard No.

AIA/NAS NAS 1258-1977

Release Date

1977

Published By

Aerospace Industries Association/ANSI Aerospace Standards

Status

Withdraw

Latest

AIA/NAS NAS 1258-1977

Replace By

AIA/NAS NAS 1790 AIA/NAS NAS 380

Scope

Dash number indicates length in .O625 increments (rounded to two decimal places). Use of .25 inch increments is recommended for screws over 3 inches long. Intermediate or longer lengths may be specified by use of whole dash number only.

AIA/NAS NAS 1258-1977 history

• 1977 AIA/NAS NAS 1258-1977 Bolt, 100 Degree Flush Head Hi-Torque Recess, .0312 Oversize Short Thread, Alloy Steel, 160,000 psi (Superseded March 1977 Use NAS 1790 and NAS 380) (Rev. 6) [Use: AIA/NAS NAS 380, AIA/NAS NAS 380, AIA/NAS NAS 1790]

AIA/NAS NAS 1258-1977 Bolt, 100 Degree Flush Head Hi-Torque Recess, .0312 Oversize Short Thread, Alloy Steel, 160,000 psi (Superseded March 1977 Use NAS 1790 and NAS 380) (Rev. 6) [Use: AIA/NAS NAS 380, AIA/NAS NAS 380, AIA/NAS NAS 1790] was changed to AIA/NAS NAS 380-2009 NAS DOCUMENTS, PREPARATION AND MAINTENANCE, IN THE INCH SYSTEM OF UNITS FSC CMAN; Revision 15 [Superseded: AIA/NAS NAS 559, AIA/NAS NAS 559, AIA/NAS NAS 559].