-321 BLACK EPDM 70D O-RING

Ordered as E70321, this is an AS568-321 black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 1.162 in (29.51 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.582 in (40.18 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, EPDM (EPR) is specified for excellent hot water and steam resistance, strong performance in outdoor and exposed installations. It resists phosphate ester hydraulic fluids, brake fluid, and water and steam. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). Applications involving mineral oil-based lubricants or aromatic hydrocarbons call for a different compound.

Maintenance and OEM teams specify it across water and steam systems, brake and phosphate ester systems, and solar and roofing assemblies.

Reference part number E70321 when ordering; the item is sold individually. Unit weight is approximately 2.8653 g and nominal inside diameter is listed as 1 3/16 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.