Q-472 BUNA 70 Q RING

APG stocks the QH70472, an AS568-472 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 22.94 in (582.68 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 23.49 in (596.65 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The compound resists propane and butane, water, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or polar solvents will shorten service life. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.

Maintenance and OEM teams specify it across automotive, fluid power, and general industrial maintenance.

Order part number QH70472, sold individually. Review your operating media and conditions against this specification before installation.