Q-267 BUNA 70 Q RING

Part number QH70267 is an AS568-267 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 8.234 in (209.14 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.512 in (216.2 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. The compound resists greases and lubricants, water, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. The profile itself contributes two sealing bands per contact face rather than one and a parting line located away from the sealing surface.

It sees regular use in fluid power, agricultural equipment, and hydraulic and pneumatic systems.

Reference part number QH70267 when ordering; the item is sold individually. Unit weight is approximately 8.37 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.