5315-01-059-7670 (MS16555-694)
NSN 5315-01-059-7670 (NIIN 01-059-7670) 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 MS16555-694; also referenced as NASM16555-694 (National Aerospace Standards).
Key specs: 36 to 42 rockwell c overall hardness; full characteristics table below. NIIN assigned April 1978; DEMIL A (none required); unit of issue EA (each), $10.66 gov standard price.