Q-009 BUNA 70 Q RING

Part number QH70009 is an AS568-009 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 0.208 in (5.28 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.348 in (8.84 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. This material stands up to petroleum-based oils, many alcohols, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to polar solvents or ozone and direct sunlight will shorten service life. The profile itself contributes two sealing bands per contact face rather than one and lower compressive load required to achieve a seal.

Common environments for this compound include agricultural equipment, automotive, and construction equipment.

QH70009 ships individually. Unit weight is approximately 0.076 g and nominal inside diameter is listed as 7/32 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.