Ordnance provision system. [Ordnance catalog (ordnance provision system)]: Group G, Half-track vehicles, car, half-track, M2, carrier, personnel, half-track, M3, carrier, 81-mm mortar, half-track, M4, carriage, motor, 75-mm gun, M3, carriage, motor, 75-mm howitzer, T-30, carriage, motor, 105-mm howitzer, T-19, sec. 7A Brake systems; Aug. 7, 1942.