H-537

MIL-PRF-83282
OX-19

HYDRAUNYCOIL FH 2

SYNTHETIC HYDRAULIC FLUID

HYDRAUNYCOIL FH 2 is a synthetic hydrocarbon base fluid for use in the - 40oC to + 205oC temperature range in aircraft and missile hydraulic systems. It is also used in airborne engine compressors and related equipment. It is microfiltered.


Main characteristics

Properties Units Typical values Test methods
Appearance — red clear liquid —
Density at 20oC kg/dm3 0.855 ASTM D 4052
Kinematic viscosity mm2/s   ASTM D 445
  at 100oC   3.5  
  40oC   15  
  -40oC   2100  
Flash point oC 225 ASTM D 92
Pour point oC <-60 ASTM D 97
Acid number (pH = 11) mg KOH/g 0.06 ASTM D 664