Q-148 BUNA 70 Q RING

APG stocks the QH70148, an AS568-148 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring supplied with an inside diameter of 2.737 in (69.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.943 in (74.75 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Expect good resistance to propane and butane, water, and hydraulic fluids. 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 carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include general industrial maintenance, automotive, and construction equipment.

Stocked as QH70148 and sold individually. Unit weight is approximately 1.433 g and nominal inside diameter is listed as 2 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.