MS28768, MILITARY STANDARD: VALVE, CHECK, CONTROLLABLE, PLUNGER-TYPE, HYDRAULIC, 3,000 PSI, TYPE II SYSTEMS (ASG) (03 MAY 1957)
MS28768, MILITARY STANDARD: VALVE, CHECK, CONTROLLABLE, PLUNGER-TYPE, HYDRAULIC, 3,000 PSI, TYPE II SYSTEMS (ASG) (03 MAY 1957).