5.7MM CS X 129.2MM ID BLACK EPDM 70D

E5.7X129.2 is a black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 129.2 mm (5.087 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 140.6 mm (5.54 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against dilute acids and alkalis, phosphate ester hydraulic fluids, and ketones. EPDM (EPR) is valued for strong performance in outdoor and exposed installations, excellent hot water and steam resistance. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C). It should not be specified for service in mineral oil-based lubricants or aromatic hydrocarbons.

It sees regular use in HVAC and refrigeration, water and steam systems, and brake and phosphate ester systems.

E5.7X129.2 ships individually. Check the compound against your process media, pressure and temperature before committing to a design. 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.