-172 BLACK BUNA 50D O-RING

This o-ring is supplied in AS568-172 black Buna-N (Nitrile) 50 Shore A built to an inside diameter of 8.237 in (209.22 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.443 in (214.45 mm), catalogued under part number H50172. It compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) delivers low compression set under sustained load, reliable performance in both static and dynamic service. The compound resists petroleum-based oils, hydraulic fluids, 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 automotive brake fluid or ozone and direct sunlight.

Common environments for this compound include automotive, general industrial maintenance, and fluid power.

This item is sold individually under part number H50172. Nominal inside diameter is listed as 8 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.