568-044 BUNA 70 SQUARE CUT RINGS

APG stocks the SH70044, an AS568-044 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 3.739 in (94.97 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.879 in (98.53 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and low compression set under sustained load. The compound resists greases and lubricants, petroleum-based oils, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or polar solvents are present.

You will find this material specified across automotive, general industrial maintenance, and hydraulic and pneumatic systems.

SH70044 ships individually. Unit weight is approximately 0.957 g and nominal inside diameter is listed as 3 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.