Aeroshell Fluid 4 is a mineral oil based hydraulic fluid containing an oxidation inhibitor and a non-zinc anti-wear additive. It is dyed red for identification and leak detection purposes. It may be used in aviation and industrial hydraulic systems where very low temperature flow properties are desired and synthetic rubber seals are in use. It is not recommended for systems using natural rubber seals.
AeroShell Fluid#4 can be used in both aircraft and non aviation hydraulic system with synthetic rubber components. Fluid #4 is intended for use as hydraulic fluid for landing gear retract systems, brakes, oelo stuts , controls, and shock absorbers.
Performance Benefits: Superior low temperature flowability. Good anti-wear protection utilizing a non-zinc anti-wear additive. AeroShell Fluid 4 is dyed red for easy identification and leak detection.
British Specification: meets DTD.585
British Specification: approved DEF STAN 91-48 Grade Normal
French Specification: approved DCSEA 415/A
NATO Specification: H-520
Russian Specification: analogue to AMG-10
Joint Service Designation Specification: OM-18
US Military Specification: MIL-H-5606A