Ordered as E80PC231, this is an AS568-231 black EPDM (EPR) 80 Shore A O-Ring with an inside diameter of 2.609 in (66.27 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.887 in (73.33 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Expect good resistance to dilute acids and alkalis, brake fluid, and ketones. That behavior comes from the compound itself: EPDM (EPR) delivers excellent hot water and steam resistance, good electrical insulating characteristics. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C).
Maintenance and OEM teams specify it across outdoor equipment, HVAC and refrigeration, and solar and roofing assemblies.
This item is sold individually under part number E80PC231. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -231 BLACK EPDM 80D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 2.609 inch (66.27 mm)
Actual Outside Diameter 2.887 inch (73.33 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity