BUNA-N Nitrile This is most popular; all-around O-Ring. It has excellent resistance to petroleum-based products; hydraulic fluids; most silicone fluids; and fuels. Excellent compression set; resistance to tear and abrasion exhibiting high tensile strength. Not good against weathering. sunlight; ozone Good for hydraulic actuator seals; hydraulic pump seals; water pump seals; carburetor seals; transmission seals.
Temperature: -20 F to +250 F
Color is black.