-231 BLACK EPDM 70D NSF O-RING

This o-ring is supplied in AS568-231 black EPDM (EPR) 70 Shore A measuring an inside diameter of 2.609 in (66.27 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.887 in (73.33 mm), catalogued under part number E70NSF231. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists water and steam, dilute acids and alkalis, and brake fluid. That behavior comes from the compound itself: EPDM (EPR) is widely chosen for strong performance in outdoor and exposed installations, outstanding weather, ozone and sunlight resistance. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service. Exposure to petroleum oils and fuels or mineral oil-based lubricants will shorten service life.

This o-ring meets FDA requirements for food contact and carries NSF listing. You will find this material specified across outdoor equipment, potable water applications, and solar and roofing assemblies.

This item is sold individually under part number E70NSF231. Unit weight is approximately 2.534 g and nominal inside diameter is listed as 2 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.