568-277 BUNA 70 SQUARE CUT RINGS

APG stocks the SH70277, an AS568-277 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring supplied with an inside diameter of 11.484 in (291.69 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 11.762 in (298.75 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

This material stands up to petroleum-based oils, hydraulic fluids, and water. Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ketones or automotive brake fluid call for a different compound.

Common environments for this compound include hydraulic and pneumatic systems, agricultural equipment, and fluid power.

SH70277 ships individually. Nominal inside diameter is listed as 11 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.