Q-464 BUNA 70 Q RING

Part number QH70464 is an AS568-464 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 17.455 in (443.36 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 18.005 in (457.33 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Expect good resistance to propane and butane, many alcohols, and water. Buna-N (Nitrile) is valued for low compression set under sustained load, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving polar solvents or ozone and direct sunlight call for a different compound. The profile itself contributes a parting line located away from the sealing surface and two sealing bands per contact face rather than one.

It sees regular use in agricultural equipment, hydraulic and pneumatic systems, and automotive.

Stocked as QH70464 and sold individually. Unit weight is approximately 66.077 g. Check the compound against your process media, pressure and temperature before committing to a design.