Q-331 BUNA 70 Q RING

APG stocks the QH70331, an AS568-331 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring measuring an inside diameter of 2.225 in (56.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.645 in (67.18 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. This material stands up to many alcohols, water, and greases and lubricants. 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 strong acids or ketones.

Typical settings include fluid power, general industrial maintenance, and hydraulic and pneumatic systems.

This item is sold individually under part number QH70331. Unit weight is approximately 5.35 g and nominal inside diameter is listed as 2 1/4 inch. 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.