3020-00-628-2851 (6282851)
NSN 3020-00-628-2851 (NIIN 00-628-2851) is a worm gear in Federal Supply Class 3020, Gears, Pulleys, Sprockets, And Transmission Chain — a gear with teeth on its outer surface in the form of helical threads. Manufacturer part number 6282851 (U S Army Tank Automotive Command, CAGE 19207); also referenced as 0E370 (Allis-Chalmers Corp).
Key specs: 79 rockwell a nominal overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL B (USML, demil required); export Schedule B 8483.40.9000.