I can identify that MIL-PRF-7808 is a Department of Defense performance specification for Lubricating Oil, Aircraft Turbine Engine, Synthetic Base [MIL-STD-961]. The specification covers two grades of aircraft turbine engine lubricating oil: Grade 3 and Grade 4 [TO 33-1-37-2].
Key requirements include:
Recertification: Items qualified to MIL-PRF-7808 require recertification every two years, even if the oil formulation has not changed [MIL-PRF-7808 para 6.3.3].
Performance standards: Both grades must meet trace metal content limits (measured by ICP-AES in ppm/mg/kg), compatibility requirements per FED-STD-791, sediment limits of 0.005 mL/200 mL oil, and storage stability standards including no crystallization, separation, or gelling after 6 weeks at -18°C [MIL-PRF-7808 para 4.4.10].
Hazard: MIL-PRF-7808 lubricating oil is toxic and a skin, eye, and respiratory tract irritant; decomposition by heat produces toxic gases [TO 33-1-37-2].
For
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No departmental passage retrieved.
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No federal/DoD passage retrieved.