MIL-V-8813 (AMENDMENT 2), MILITARY SPECIFICATION: VALVES, AIRCRAFT, HYDRAULIC PRESSURE RELIEF, TYPE II SYSTEMS (30-JUL-1981)
MIL-V-8813 (AMENDMENT 2), MILITARY SPECIFICATION: VALVES, AIRCRAFT, HYDRAULIC PRESSURE RELIEF, TYPE II SYSTEMS (30-JUL-1981).