Q-245 BUNA 70 Q RING

Part number QH70245 is an AS568-245 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 4.359 in (110.72 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.637 in (117.78 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

As a material, Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. This material stands up to greases and lubricants, many alcohols, and hydraulic fluids. 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 strong acids 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.

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

QH70245 ships individually. Unit weight is approximately 4.699 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.