Q-163 BUNA 70 Q RING

APG stocks the QH70163, an AS568-163 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 5.987 in (152.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 6.193 in (157.3 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

As a material, Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material holds up against propane and butane, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or automotive brake fluid are present. The profile itself contributes a parting line located away from the sealing surface and lower compressive load required to achieve a seal.

Typical settings include agricultural equipment, hydraulic and pneumatic systems, and automotive.

This item is sold individually under part number QH70163. Unit weight is approximately 3.1386 g and nominal inside diameter is listed as 6 inch. Check the compound against your process media, pressure and temperature before committing to a design.