2510-00-318-1018 (7979440)
NSN 2510-00-318-1018 (NIIN 00-318-1018) is a leaf spring assembly in Federal Supply Class 2510, Vehicular Cab, Body, And Frame Structural Components — a series or combination of two or more leaves of resilient metal clamped or bolted together, designed to be mounted between axle and frame of a vehicle. Manufacturer part number 7979440 (U S Army Tank Automotive Command, CAGE 19207); also referenced as 15633 (Marmon Group IncThe Fenestra Div).
Key specs: 41 to 47 rockwell c material hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 7320.10.0000.