Q-451 BUNA 70 Q RING

This quad-ring is supplied in AS568-451 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 10.975 in (278.77 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 11.525 in (292.74 mm), catalogued under part number QH70451. It provides a dual sealing band on each contact face for improved reliability.

This material stands up to petroleum-based oils, many alcohols, and propane and butane. Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or polar solvents call for a different compound. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and two sealing bands per contact face rather than one.

You will find this material specified across construction equipment, hydraulic and pneumatic systems, and automotive.

Stocked as QH70451 and sold individually. Unit weight is approximately 45.294 g and nominal inside diameter is listed as 11 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.