3020-00-796-2691 (7962691)
NSN 3020-00-796-2691 (NIIN 00-796-2691) 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 7962691 (U S Army Tank Automotive Command, CAGE 19207).
Key specs: rockwell hardness test method; 55 to 60 rockwell c teeth hardness; full characteristics table below. NIIN assigned January 1962; DEMIL A (none required); export Schedule B 8483.90.1000.