MIL-T-4734C, MILITARY SPECIFICATION: TRANSIT CASES, COMBINATION CASES AND SPARE PARTS CASES FOR GROUND ELECTRONIC EQUIPMENT (USAF), REQUIREMENTS FOR (30 JAN 1969) [S/S BY MIL-C-4150 AND MIL-C-5584]., This specification covers the requirements for two types of transit cases designated Transit Cases, Combination Cases and Spare Parts Cases, Type I or Type II hereinafter referred to as the "type number" or "transit case"when referred to collectively