This o-ring is supplied in black EPDM (EPR) 70 Shore A supplied with an inside diameter of 64.2 mm (2.528 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 75.6 mm (2.98 in), catalogued under part number E5.7X64.2. It creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, EPDM (EPR) is widely chosen for very good flexibility at low temperature and good electrical insulating characteristics. Expect good resistance to dilute acids and alkalis, phosphate ester hydraulic fluids, and ketones. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C). It should not be specified for service in mineral oil-based lubricants or petroleum oils and fuels.
Maintenance and OEM teams specify it across solar and roofing assemblies, HVAC and refrigeration, and outdoor equipment.
Stocked as E5.7X64.2 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 5.7MM CS X 64.2MM ID BLACK EPDM 70D
Actual Outside Diameter 75.6 mm (2.98 inch)
Actual Cross Section 5.7 mm (0.224 inch)
Actual Inside Diameter 64.2 mm (2.528 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity