Hydraunycoil FH 3

Synthetic hydraulic fluid, anti-rust

NATO CODE H-544 – MIL-PRF-46170 E Type 1 – TL 9150-0097 Ausg. 3

Hydraunycoil FH 3 is a synthetic hydraulic fluid based on a blend of poly-alpha-olefins (PAO) and synthetic esters, with a viscosity of 15 cSt at 40°C, and a viscosity index of 125. It combi nes most of the features of Hydraunycoil FH 2 (MIL-PRF-83282/H-537) with strong anti-rust properties and protection from galvanic corrosion.

The undyed – pale yellow – Hydraunycoil FH 3 is covered by NATO code H-544. It is a micro-filtered fluid.


Hydraunycoil FH 3 is primarily used in tank recoil mechanism and hydraulic systems of ground equipment.

It enables safer handling and operation at high temperature compared to the previous generation of petroleum-based fluids that exhibit low flash and fire points.

download Hydraunycoil FH 3 technical datasheet