Q-110 BUNA 70 Q RING

This quad-ring is supplied in AS568-110 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 0.362 in (9.19 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.568 in (14.43 mm), catalogued under part number QH70110. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

The compound resists petroleum-based oils, hydraulic fluids, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes two sealing bands per contact face rather than one and a parting line located away from the sealing surface.

Maintenance and OEM teams specify it across fluid power, general industrial maintenance, and automotive.

Order part number QH70110, sold individually. Unit weight is approximately 0.254 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.