568-441 BUNA 70 SQUARE CUT RINGS

SH70441 is an AS568-441 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 6.975 in (177.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 7.525 in (191.14 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. It resists hydraulic fluids, propane and butane, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ketones or strong acids.

You will find this material specified across general industrial maintenance, construction equipment, and automotive.

SH70441 ships individually. Nominal inside diameter is listed as 7 inch. Check the compound against your process media, pressure and temperature before committing to a design.