-218 BLACK EPDM 70D NSF O-RING

APG stocks the E70NSF218, an AS568-218 black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 1.234 in (31.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.512 in (38.4 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

EPDM (EPR) delivers excellent hot water and steam resistance, good electrical insulating characteristics. This material stands up to phosphate ester hydraulic fluids, ketones, and dilute acids and alkalis. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It should not be specified for service in aromatic hydrocarbons or mineral oil-based lubricants.

The compound meets FDA requirements for food contact and carries NSF listing. It sees regular use in HVAC and refrigeration, solar and roofing assemblies, and brake and phosphate ester systems.

Reference part number E70NSF218 when ordering; the item is sold individually. Unit weight is approximately 1.24 g and nominal inside diameter is listed as 1 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.