Q-036 BUNA 70 Q RING

APG stocks the QH70036, an AS568-036 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 2.364 in (60.05 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.504 in (63.6 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

The material holds up against petroleum-based oils, greases and lubricants, and hydraulic fluids. Buna-N (Nitrile) offers strong abrasion and tear resistance, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or polar solvents. The profile itself contributes a parting line located away from the sealing surface and lower compressive load required to achieve a seal.

Maintenance and OEM teams specify it across agricultural equipment, automotive, and construction equipment.

Stocked as QH70036 and sold individually. Unit weight is approximately 0.6082 g and nominal inside diameter is listed as 2 3/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.