Ordnance provision system. [Ordnance catalog (ordnance provision system): Groups A-T. G-146. [Track, 2½-ton. 6×6, machine shop, M16 and M16A1] v. 5, Truck, 2½-ton, 6×6. machine shop, M16 and M16A1, load F, organizational spare parts and equipment; Sept. 24, 1943.