Q-432 BUNA 70 Q RING

APG stocks the QH70432, an AS568-432 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 5.35 in (135.89 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.9 in (149.86 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

It resists many alcohols, propane and butane, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

Typical settings include construction equipment, general industrial maintenance, and fluid power.

This item is sold individually under part number QH70432. Unit weight is approximately 21.119 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.