MIL-STD-1401, MILITARY DESIGN: ENGINE, GASOLINE, AIR COOLED, 20 BHP, 4 CYCLE, MILITARY DESIGN, MODEL 4A084 INSTALLATION PROCEDURES (1 AUG 1966) [NO S/
MIL-STD-1401, MILITARY DESIGN: ENGINE, GASOLINE, AIR COOLED, 20 BHP, 4 CYCLE, MILITARY DESIGN, MODEL 4A084 INSTALLATION PROCEDURES (1 AUG 1966) [NO S/S DOCUMENT]., The standard covers the recommended installation procedures for the model 4A084, 20 hp Military design engine.