-217 BLACK EPDM 70D NSF O-RING

This o-ring is supplied in AS568-217 black EPDM (EPR) 70 Shore A built to an inside diameter of 1.171 in (29.74 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.449 in (36.8 mm), catalogued under part number E70NSF217. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to dilute acids and alkalis, water and steam, and brake fluid. That behavior comes from the compound itself: EPDM (EPR) is known for good electrical insulating characteristics and very good flexibility at low temperature. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C). It is not the right choice where petroleum oils and fuels or aromatic hydrocarbons are present.

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

This item is sold individually under part number E70NSF217. Unit weight is approximately 1.142 g and nominal inside diameter is listed as 1 3/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.