-340 BLACK EPDM 80D O-RING

This o-ring is supplied in AS568-340 black EPDM (EPR) 80 Shore A measuring an inside diameter of 3.35 in (85.09 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.77 in (95.76 mm), catalogued under part number E80PC340. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against water and steam, ozone, UV and weathering, and phosphate ester hydraulic fluids. That behavior comes from the compound itself: EPDM (EPR) is specified for strong performance in outdoor and exposed installations, good electrical insulating characteristics. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C). Exposure to mineral oil-based lubricants or aromatic hydrocarbons will shorten service life.

It sees regular use in HVAC and refrigeration, brake and phosphate ester systems, and water and steam systems.

Reference part number E80PC340 when ordering; the item is sold individually. Nominal inside diameter is listed as 3 3/8 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.