This quad-ring is supplied in AS568-374 black Buna-N (Nitrile) 70 Shore A quad profile 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.
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.
description Q-374 BUNA 70 Q RING
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 9.225 inch (234.32 mm)
Actual_OD 9.645 inch (244.98 mm)
ProductCode Description O-Rings - Square/Quad - Commodity