Q-210 BUNA 70 Q RING

APG stocks the QH70210, an AS568-210 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring supplied with an inside diameter of 0.734 in (18.64 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.012 in (25.7 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

It resists water, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ozone and direct sunlight are present.

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

Reference part number QH70210 when ordering; the item is sold individually. Unit weight is approximately 0.892 g and nominal inside diameter is listed as 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.