Q-383 BUNA 70 Q RING

QH70383 is an AS568-383 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 13.975 in (354.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 14.395 in (365.63 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

As a material, Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, low compression set under sustained load. Expect good resistance to hydraulic fluids, propane and butane, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ozone and direct sunlight. The profile itself contributes a parting line located away from the sealing surface and lower compressive load required to achieve a seal.

Typical settings include general industrial maintenance, automotive, and construction equipment.

QH70383 ships individually. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.