NAS 208

Screws – 100 Flat Head, Phillips Recess, Aluminum Alloy, Bronze and Alloy Steel, 3/8-24
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 11/01/1947

NAS 1822

Interconnecting Device, Electrical, Wire Terminating Blocks, Spacer (Feeuthru)
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 10/31/1971