TU 38.1011219-95

NK-50 is the MC-20 oil thickened with the stearine and olein sodium soap. It contains colloidal graphite.

NK-50 is used for the aircraft landing gear hubs within the temperature range from -15°C to +120°C. Its former brand name was ST – (high-heat aircraft-engine grease).

Index nameNorm
Drop point, °C, min. 200
Penetration at 25°C, 0,1 mm 170-225
Point of break at 20°C, Pa 700-1200
Viscosity at 0°C and rate of deformation average gradient 10s-1, Pa•s, max. 1000
Colloid stability, %, max. 7


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