Q-147 BUNA 70 Q RING

Ordered as QH70147, this is an AS568-147 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 2.675 in (67.95 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.881 in (73.18 mm). The quad-ring provides a dual sealing band on each contact face for improved reliability.

As a material, Buna-N (Nitrile) offers reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material holds up against propane and butane, petroleum-based oils, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or polar solvents. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

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

Reference part number QH70147 when ordering; the item is sold individually. Unit weight is approximately 1.4161 g and nominal inside diameter is listed as 2 11/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.