Q-374 BUNA 70 Q RING

This quad-ring is supplied in AS568-374 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 9.225 in (234.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.645 in (244.98 mm), catalogued under part number QH70374. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. This material stands up to many alcohols, water, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or ozone and direct sunlight are present. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

You will find this material specified across fluid power, construction equipment, and agricultural equipment.

This item is sold individually under part number QH70374. Unit weight is approximately 20.819 g and nominal inside diameter is listed as 9 1/4 inch. Review your operating media and conditions against this specification before installation.