Q-115 BUNA 70 Q RING

This quad-ring is supplied in AS568-115 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 0.674 in (17.12 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.88 in (22.35 mm), catalogued under part number QH70115. It seats in a standard o-ring gland while offering improved dynamic performance.

As a material, Buna-N (Nitrile) delivers low compression set under sustained load, reliable performance in both static and dynamic service. This material stands up to petroleum-based oils, propane and butane, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ketones. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and construction equipment.

QH70115 ships individually. Unit weight is approximately 0.427 g. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.