This o-ring is supplied in black EPDM (EPR) 70 Shore A measuring an inside diameter of 44.45 mm (1.75 in), a cross section of 3.53 mm (0.139 in), and an outside diameter of 51.51 mm (2.03 in), catalogued under part number E3.53X44.45. It compresses into its gland to block fluid or gas migration across a joint.
It resists dilute acids and alkalis, water and steam, and phosphate ester hydraulic fluids. That behavior comes from the compound itself: EPDM (EPR) is valued for outstanding weather, ozone and sunlight 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 should not be specified for service in aromatic hydrocarbons or petroleum oils and fuels.
Typical settings include brake and phosphate ester systems, HVAC and refrigeration, and outdoor equipment.
Stocked as E3.53X44.45 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description 3.53MM CS X 44.45MM ID BLACK EPDM 70D
Actual Outside Diameter 51.51 mm (2.03 inch)
Actual Cross Section 3.53 mm (0.139 inch)
Actual Inside Diameter 44.45 mm (1.75 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity