Q-127 BUNA 70 Q RING

Ordered as QH70127, this is an AS568-127 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 1.424 in (36.17 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.63 in (41.4 mm). The quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. The material holds up against propane and butane, hydraulic fluids, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or ozone and direct sunlight. The profile itself contributes a parting line located away from the sealing surface and two sealing bands per contact face rather than one.

You will find this material specified across construction equipment, general industrial maintenance, and fluid power.

Order part number QH70127, sold individually. Unit weight is approximately 0.846 g and nominal inside diameter is listed as 1 7/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.