5315-00-527-1650 (TYPE4)
NSN 5315-00-527-1650 (NIIN 00-527-1650) is a headless grooved pin in Federal Supply Class 5315, Nails, Machine Keys, And Pins — a headless item of various shapes, usually cylindrical, having either circular or longitudinal groove(s). Manufacturer part number TYPE4 (Groov-Pin Corp, CAGE 73957).
Key specs: 89 rockwell b nominal overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $85.01 gov standard price.