5315-00-059-0221 (590221)
NSN 5315-00-059-0221 (NIIN 00-059-0221) is a cotter pin in Federal Supply Class 5315, Nails, Machine Keys, And Pins — a half round, cylindrical, or flat piece of metal, bent to form a straight or crimped two-pronged device with an eye at one end. Manufacturer part number 590221 (U S Army Tank Automotive Command, CAGE 19207); also referenced as FFP386 (Federal Specifications Promulgated).
NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $0.04 gov standard price; ships at 0.03 lb / 0.0012 cu ft. Supersedes 5315-00-584-3587 (2023).