NAS 62

Bolt – Close Tolerance Alloy Steel and Alum. Alloy 3/4-16
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 06/01/1949

NAS 55

Bolt – Close Tolerance Alloy Steel and Alum. Alloy 5/16-24
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 06/01/1949

NAS 943

Interchangeable Perforated Tape Standards Variable Block Format for Positioning and Straight Cut Numerically Controlled Equipment
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 08/30/1974