Q-380 BUNA 70 Q RING

Part number QH70380 is an AS568-380 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 11.475 in (291.47 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 11.895 in (302.13 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. Expect good resistance to many alcohols, water, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. The profile itself contributes a parting line located away from the sealing surface and lower compressive load required to achieve a seal.

It sees regular use in construction equipment, agricultural equipment, and automotive.

QH70380 ships individually. Unit weight is approximately 25.429 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.