*568-429 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-429 black Buna-N (Nitrile) 70 Shore A square profile supplied with an inside diameter of 4.975 in (126.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.525 in (140.34 mm), catalogued under part number SH70429. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

The material holds up against water, petroleum-based oils, and propane and butane. Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

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

This item is sold individually under part number SH70429. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.