-387 BLACK EPDM 80D O-RING

E80PC387 is an AS568-387 black EPDM (EPR) 80 Shore A O-Ring measuring an inside diameter of 17.955 in (456.06 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 18.375 in (466.73 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to brake fluid, water and steam, and ketones. That behavior comes from the compound itself: EPDM (EPR) is widely chosen for outstanding weather, ozone and sunlight resistance, strong performance in outdoor and exposed installations. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C).

It sees regular use in solar and roofing assemblies, outdoor equipment, and HVAC and refrigeration.

Reference part number E80PC387 when ordering; the item is sold individually. Nominal inside diameter is listed as 18 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.