568-031 BUNA 70 SQUARE CUT RINGS

SH70031 is an AS568-031 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring measuring an inside diameter of 1.739 in (44.17 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.879 in (47.73 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) offers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material holds up against many alcohols, petroleum-based oils, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.

Typical settings include construction equipment, general industrial maintenance, and hydraulic and pneumatic systems.

Order part number SH70031, sold individually. Unit weight is approximately 0.449 g and nominal inside diameter is listed as 1 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.