Q-431 BUNA 70 Q RING

Ordered as QH70431, this is an AS568-431 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring with an inside diameter of 5.225 in (132.72 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.775 in (146.69 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

As a material, Buna-N (Nitrile) is specified for strong abrasion and tear resistance, low compression set under sustained load. This material stands up to hydraulic fluids, petroleum-based oils, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or ketones.

Common environments for this compound include automotive, construction equipment, and fluid power.

This item is sold individually under part number QH70431. Unit weight is approximately 20.531 g and nominal inside diameter is listed as 5 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. 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.