Q-354 BUNA 70 Q RING

QH70354 is an AS568-354 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 5.1 in (129.54 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.52 in (140.21 mm). In service, this quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, low compression set under sustained load. Expect good resistance to propane and butane, many alcohols, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to automotive brake fluid or strong acids will shorten service life. The profile itself contributes lower compressive load required to achieve a seal and a parting line located away from the sealing surface.

You will find this material specified across construction equipment, agricultural equipment, and general industrial maintenance.

QH70354 ships individually. Check the compound against your process media, pressure and temperature before committing to a design.