Q-455 BUNA 70 Q RING

APG stocks the QH70455, an AS568-455 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 12.975 in (329.57 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 13.525 in (343.54 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

The material holds up against water, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or ketones are present. The profile itself contributes lower compressive load required to achieve a seal and resistance to the spiral twisting that defeats round-section rings.

You will find this material specified across automotive, fluid power, and hydraulic and pneumatic systems.

QH70455 ships individually. Unit weight is approximately 53.78 g and nominal inside diameter is listed as 13 inch. Review your operating media and conditions against this specification before installation.