Q-211 BUNA 70 Q RING

This quad-ring is supplied in AS568-211 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 0.796 in (20.22 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.074 in (27.28 mm), catalogued under part number QH70211. It delivers lower friction and better sealing stability than a comparable round-section o-ring.

The material holds up against water, greases and lubricants, and many alcohols. Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes resistance to the spiral twisting that defeats round-section rings and a parting line located away from the sealing surface.

Common environments for this compound include general industrial maintenance, agricultural equipment, and automotive.

Reference part number QH70211 when ordering; the item is sold individually. Unit weight is approximately 0.93 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.