Q-377 BUNA 70 Q RING

QH70377 is an AS568-377 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring measuring an inside diameter of 9.975 in (253.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.395 in (264.03 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is widely chosen for low compression set under sustained load and an economical choice for high-volume maintenance programs. It resists propane and butane, greases and lubricants, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ketones.

It sees regular use in agricultural equipment, construction equipment, and fluid power.

QH70377 ships individually. Unit weight is approximately 22.058 g and nominal inside diameter is listed as 10 inch. Check the compound against your process media, pressure and temperature before committing to a design.