5315-00-059-5213 (00K220)
NSN 5315-00-059-5213 (NIIN 00-059-5213) is a machine key in Federal Supply Class 5315, Nails, Machine Keys, And Pins — a metallic item, usually square or rectangular in cross section, usually longer in relation to its width and thickness, with or without a head. Manufacturer part number 00K220 (Federal Specifications Promulgated, CAGE 81348); also referenced as MS20066-744 (Military Standards).
NIIN assigned December 1971; DEMIL A (none required).