MIL-L-6081C, MILITARY SPECIFICATION: LUBRICATING OIL, JET ENGINE (15-APR-1964) [SUPERSEDING MIL-O-6081B] [SUPERSEDED BY MIL-PRF-6081D]

MIL-L-6081C, MILITARY SPECIFICATION: LUBRICATING OIL, JET ENGINE (15-APR-1964) [SUPERSEDING MIL-O-6081B] [SUPERSEDED BY MIL-PRF-6081D]., This specification covers the requirements for two grades of jet engine lubricating oil.