3020-00-318-0524 (8392324)
NSN 3020-00-318-0524 (NIIN 00-318-0524) is a gear cluster in Federal Supply Class 3020, Gears, Pulleys, Sprockets, And Transmission Chain — a cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. Manufacturer part number 8392324 (U S Army Tank Automotive Command, CAGE 19207); also referenced as 1576 (Paccar Government Group Co Yarrow).
Key specs: 58 to 62 rockwell c overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8483.40.9000.