3020-00-952-2851 (300001-02)
NSN 3020-00-952-2851 (NIIN 00-952-2851) is a sprocket wheel in Federal Supply Class 3020, Gears, Pulleys, Sprockets, And Transmission Chain — a toothed wheel whose teeth or sprockets are designed to be engaged with the links of a pitch chain, track, or the like. Manufacturer part number 300001-02 (Servo Corporation Of America, CAGE 92110).
Key specs: 50 nominal rockwell c body metallic hardness; rockwell hardness test method; full characteristics table below. NIIN assigned January 1962; DEMIL A (none required); unit of issue EA (each), $53.27 gov standard price; export Schedule B 8483.90.1000.