5.7MM CS X 39.2MM ID BLACK EPDM 70D

APG stocks the E5.7X39.2, a black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 39.2 mm (1.543 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 50.6 mm (1.99 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to phosphate ester hydraulic fluids, ozone, UV and weathering, and ketones. EPDM (EPR) is widely chosen for 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).

It sees regular use in water and steam systems, HVAC and refrigeration, and solar and roofing assemblies.

Reference part number E5.7X39.2 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.