This o-ring is supplied in AS568-270 black EPDM (EPR) 80 Shore A with an inside diameter of 8.984 in (228.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.262 in (235.25 mm), catalogued under part number E80PC270. It compresses into its gland to block fluid or gas migration across a joint.
Expect good resistance to phosphate ester hydraulic fluids, brake fluid, and dilute acids and alkalis. That behavior comes from the compound itself: EPDM (EPR) is known for strong performance in outdoor and exposed installations, very good flexibility at low temperature. 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.
Typical settings include HVAC and refrigeration, outdoor equipment, and solar and roofing assemblies.
Order part number E80PC270, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description -270 BLACK EPDM 80D O-RING
uf_description2 PEROXIDE CURED, 0.139" (3.53MM) CS X 8.984" (228.19MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 8.984 inch (228.19 mm)
Actual_OD 9.262 inch (235.25 mm)
ProductCode Description O-Rings - Bulk - Commodity