MIL-O-19838, MILITARY SPECIFICATION: OIL SYSTEMS: AIRCRAFT, INSTALLATION AND TEST OF (12 DEC 1956)

MIL-O-19838, MILITARY SPECIFICATION: OIL SYSTEMS: AIRCRAFT, INSTALLATION AND TEST OF (12 DEC 1956)., This specification covers the general requirements for design, functional operation, installation, and testing of oil systems for piloted aircraft, target drones and guided missiles, and shall be followed except as otherwise authorized by the Bureau of Aeronautics for each design.