-389 BLACK EPDM 80D O-RING

E80PC389 is an AS568-389 black EPDM (EPR) 80 Shore A O-Ring supplied with an inside diameter of 19.953 in (506.81 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 20.373 in (517.47 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

EPDM (EPR) is specified here for very good flexibility at low temperature and good electrical insulating characteristics. The material holds up against brake fluid, phosphate ester hydraulic fluids, and dilute acids and alkalis. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service. Verify compatibility before use with aromatic hydrocarbons or petroleum oils and fuels.

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

E80PC389 ships individually. Nominal inside diameter is listed as 20 inch. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.