-250 BLACK EPDM 70D O-RING

This o-ring is supplied in AS568-250 black EPDM (EPR) 70 Shore A measuring an inside diameter of 4.984 in (126.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.262 in (133.65 mm), catalogued under part number E70250. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, EPDM (EPR) offers outstanding weather, ozone and sunlight resistance, good electrical insulating characteristics. Expect good resistance to brake fluid, water and steam, and phosphate ester hydraulic fluids. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C). It should not be specified for service in mineral oil-based lubricants or aromatic hydrocarbons.

Common environments for this compound include water and steam systems, potable water applications, and solar and roofing assemblies.

E70250 ships individually. Unit weight is approximately 4.64 g and nominal inside diameter is listed as 5 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.