MIL-O-5606, MILITARY SPECIFICATION: OIL, HYDRAULIC;, AIRCRAFT, PETROLEUM BASE (31-JAN-1950) [SUPERSEDING AN-O-366] [S/S BY MIL-H-5606A]

MIL-O-5606, MILITARY SPECIFICATION: OIL, HYDRAULIC;, AIRCRAFT, PETROLEUM BASE (31-JAN-1950) [SUPERSEDING AN-O-366] [S/S BY MIL-H-5606A]., This specification covers the general requirements for petroleum base hydraulic oil.