568-469 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-469 black Buna-N (Nitrile) 70 Shore A square profile measuring an inside diameter of 19.955 in (506.86 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 20.505 in (520.83 mm), catalogued under part number SH70469. It delivers lower friction and better sealing stability than a comparable round-section o-ring.

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

Common environments for this compound include automotive, agricultural equipment, and fluid power.

Stocked as SH70469 and sold individually. Nominal inside diameter is listed as 20 inch. Check the compound against your process media, pressure and temperature before committing to a design.