ROYCO 27ROYCO 27 is a light tan synthetic ester based grease with a lithium stearate thickener. Additives are provided for oxidation and corrosion resistance as well as rust protection and extreme pressure anti-wear properties.PROPERTIESSPECIFICATIONSROYCO 27 meets all requirements and is qualified as a Type I grease under MIL-PRF-23827C(2). It is identified as NATO Code G-354.