5315-01-059-9567 (21-01081)
NSN 5315-01-059-9567 (NIIN 01-059-9567) 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 21-01081 (Johnson Controls Navy Systems, LLC, CAGE 66935).
NIIN assigned May 1978; DEMIL A (none required).