Q-261 BUNA 70 Q RING

Ordered as QH70261, this is an AS568-261 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring with an inside diameter of 6.734 in (171.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.012 in (178.1 mm). The quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

The material holds up against many alcohols, water, and hydraulic fluids. Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or automotive brake fluid.

Common environments for this compound include hydraulic and pneumatic systems, fluid power, and agricultural equipment.

Reference part number QH70261 when ordering; the item is sold individually. Unit weight is approximately 6.353 g. 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.