Q-047 BUNA 70 Q RING

APG stocks the QH70047, an AS568-047 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 4.489 in (114.02 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.629 in (117.58 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is valued for strong abrasion and tear resistance, low compression set under sustained load. It resists water, hydraulic fluids, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes lower compressive load required to achieve a seal and a parting line located away from the sealing surface.

You will find this material specified across automotive, agricultural equipment, and construction equipment.

QH70047 ships individually. Unit weight is approximately 1.1195 g and nominal inside diameter is listed as 4 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.