5315-00-032-1963 (728211-2)
NSN 5315-00-032-1963 (NIIN 00-032-1963) is a headed shoulder pin in Federal Supply Class 5315, Nails, Machine Keys, And Pins — a cylindrically-shaped headed item, whose other end can be threaded. Manufacturer part number 728211-2 (Emcore Space & Navigation LLC, CAGE 1NZ85).
NIIN assigned January 1963; DEMIL A (none required).