MIL-DTL-62073 Trailer, Flatbed: 4-, 5-, And 7.5-Ton, 4-Wheel \(Tandem\) Cart Type; Trailer, Bolster: 4-Ton, 4-Wheel \(Tandem\)This specification covers four-wheeled tandem axle type trailers of 4-, 5-, and 7.5-ton capacities for tactical military operations \(see 6.1\).