NAS 9311

Rivet-Blind, 100 Flush Head, Mechanically Locked Spindle, Bulbed Style B, Class 2, Code M & C
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 02/28/2000

NAS 541

Involute Serrations – Internal 45 Pressure Angle Loose Fit
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 09/07/1983

NAS 548

Screw – 100 Head, Type B Tapping, Frearson, Phillips, and Slotted Recess
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 05/01/1964

NAS 560

Screw-Machine, Non Magnetic High Temperature, Structural, 100 Flush Head
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 06/25/1980