MIL-L-27502, MILITARY STANDARD: LUBRICATING OIL, AIRCRAFT TURBINE ENGINE, ESTER BASE (25-JAN-1972) [SUPERSEDING MIL-L-9236B] [NO S/S DOCUMENT]
MIL-L-27502, MILITARY STANDARD: LUBRICATING OIL, AIRCRAFT TURBINE ENGINE, ESTER BASE (25-JAN-1972) [SUPERSEDING MIL-L-9236B] [NO S/S DOCUMENT]., This specification covers the requirements for one grade of aircraft gas turbine engine lubricating oil.