3MM CS X 139.5MM ID BLACK EPDM 70D

Part number E3X139.5 is a black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 139.5 mm (5.492 in), a cross section of 3 mm (0.118 in), and an outside diameter of 145.5 mm (5.73 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

EPDM (EPR) is specified here for good electrical insulating characteristics, excellent hot water and steam resistance. It resists phosphate ester hydraulic fluids, ozone, UV and weathering, and water and steam. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C).

You will find this material specified across HVAC and refrigeration, outdoor equipment, and solar and roofing assemblies.

Stocked as E3X139.5 and sold individually. Review your operating media and conditions against this specification before 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.