*568-458 70 DURO BUNA QUAD RING

The QH70458 is an AS568-458 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring supplied with an inside diameter of 14.475 in (367.67 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 15.025 in (381.64 mm). This quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

As a material, Buna-N (Nitrile) offers strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. The material holds up against propane and butane, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ozone and direct sunlight.

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

QH70458 ships individually. Nominal inside diameter is listed as 14 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.