Parker’s hydrogenated nitrile KB190-50 (HNBR, HSN) is a synthetic polymer that results from the hydrogenation of nitrile rubber (NBR). Superior mechanical characteristics, particularly high strength, helps reduce extrusion and wear.
• Heat resistance — Up to 150°C (300°F)
• Cold flexibility — Down to approximately -48°C (-55°F)
Chemical resistance
• Aliphatic hydrocarbons
• Vegetable and animal fats and oils
• HFA, HFB and HFC hydraulic fluids
• Dilute acids, bases and salt solutions at moderate temperatures
• Water and steam up to 149°C (300°F)
• Ozone, aging and weathering
Not compatible with:
• Chlorinated hydrocarbons
• Polar solvents (ketones, esters and ethers)
• Strong acids
Used for automotive applications
*Custom sizes and coatings/markings are available upon request. Contact Parker O-Ring Division at 859-269-2351 for design and pricing assistance.
