MIL-PRF-23699G, PERFORMANCE SPECIFICATION: LUBRICATING OIL, AIRCRAFT TURBINE ENGINE, SYNTHETIC BASE, NATO CODE NUMBERS: O-152, O-154, O-156, and O-167 (13-MAR-2014)

MIL-PRF-23699G, PERFORMANCE SPECIFICATION: LUBRICATING OIL, AIRCRAFT TURBINE ENGINE, SYNTHETIC BASE, NATO CODE NUMBERS: O-152, O-154, O-156, and O-167 (13-MAR-2014)., This specification covers four classes of gas turbine engine lubricating oils, primarily used for aircraft engines, which have a nominal viscosity of 5 centistokes at 100 °C and which are typically made with neopentyl polyol ester base stocks. This oil is identified by NATO Code Numbers O-152, O-154, O-156, and O-167.