Q-150 BUNA 70 Q RING

QH70150 is an AS568-150 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 2.862 in (72.69 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.068 in (77.93 mm). In service, this quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. Expect good resistance to petroleum-based oils, water, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or ozone and direct sunlight. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

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

This item is sold individually under part number QH70150. Unit weight is approximately 1.5031 g and nominal inside diameter is listed as 2 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.