-242 BLACK EPDM 80D O-RING

APG stocks the E80PC242, an AS568-242 black EPDM (EPR) 80 Shore A O-Ring measuring an inside diameter of 3.984 in (101.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.262 in (108.25 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

This material stands up to water and steam, brake fluid, and phosphate ester hydraulic fluids. That behavior comes from the compound itself: EPDM (EPR) delivers excellent hot water and steam resistance, strong performance in outdoor and exposed installations. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C). Verify compatibility before use with mineral oil-based lubricants or aromatic hydrocarbons.

Common environments for this compound include water and steam systems, brake and phosphate ester systems, and HVAC and refrigeration.

Reference part number E80PC242 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. 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.