Q-468 BUNA 70 Q RING

QH70468 is an AS568-468 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 19.455 in (494.16 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 20.005 in (508.13 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

This material stands up to water, propane and butane, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or polar solvents call for a different compound. The profile itself contributes a parting line located away from the sealing surface and two sealing bands per contact face rather than one.

Typical settings include fluid power, automotive, and general industrial maintenance.

Stocked as QH70468 and sold individually. Unit weight is approximately 72.779 g and nominal inside diameter is listed as 19 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.