5320-00-502-0522 (5020522)
NSN 5320-00-502-0522 (NIIN 00-502-0522) is a solid rivet in Federal Supply Class 5320, Rivets — a headed fastening device having a smooth solid shank designed to have the shank end upset after insertion. Manufacturer part number 5020522 (U S Army Tank Automotive Command, CAGE 19207).
NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $3.20 gov standard price.