*568-204 SQUARE CUT BUNA ORINGS

APG stocks the SH70204, an AS568-204 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring supplied with an inside diameter of 0.359 in (9.12 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.637 in (16.18 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. It resists propane and butane, hydraulic fluids, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with strong acids or automotive brake fluid.

It sees regular use in hydraulic and pneumatic systems, general industrial maintenance, and automotive.

Reference part number SH70204 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.