Royco 885ROYCO 885 is a light, synthetic based generalpurpose instrument lubricating oil-containing additives for oxidation and corrosion inhibition, antifoaming, and rust protection.This fluid has a very low volatility and exhibits exceptional low temperature performance as well.Properties SpecificationsROYCO 885 is qualified to and meets the requirements of MIL-PRF-6085D as well as Boeing Material Specification: BMS 3-7. Military Symbol OAI, NATO Code No. 0-147, UK Joint Service Designation OX-14. ROYCO 885 is designated as a P-17 contact rust preventive under MIL-STD-2073-1E.