3895-00-221-1751 (MIL-T-780)
NSN 3895-00-221-1751 (NIIN 00-221-1751) is a pneuma piston-hammer type tamper in Federal Supply Class 3895, Miscellaneous Construction Equipment — a hand-held, compressed air driven, tool having a power actuated piston for imparting hammerlike blows to an attached tamping pad. Manufacturer part number MIL-T-780 (Military Specifications, CAGE 81349); also referenced as CP4 (Chicago Pneumatic Tool Co).
Key specs: 80 psi nominal operating pressure; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $479.80 gov standard price; ships at 45 lb / 0.6806 cu ft. Supersedes 4320-00-376-6972 (1976); related NSN 3895-00-244-1277.