Q-214 BUNA 70 Q RING

This quad-ring is supplied in AS568-214 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 0.984 in (24.99 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.262 in (32.05 mm), catalogued under part number QH70214. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material holds up against petroleum-based oils, propane and butane, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or ketones. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, agricultural equipment, and fluid power.

Stocked as QH70214 and sold individually. Unit weight is approximately 1.0596 g and nominal inside diameter is listed as 1 inch. Check the compound against your process media, pressure and temperature before committing to a design.