5315-00-515-2865 (5152865)
NSN 5315-00-515-2865 (NIIN 00-515-2865) is a headless straight pin in Federal Supply Class 5315, Nails, Machine Keys, And Pins — a headless, generally cylindrically-shaped item having a straight, smooth, solid body, with or without a drilled hole(s). Manufacturer part number 5152865 (Combat Capabilities Development, CAGE 19200).
Key specs: 50 to 58 rockwell d overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required).