E2X40 is a black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 40 mm (1.575 in), a cross section of 2 mm (0.079 in), and an outside diameter of 44 mm (1.73 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
This material stands up to brake fluid, ketones, and ozone, UV and weathering. That behavior comes from the compound itself: EPDM (EPR) is valued for excellent hot water and steam resistance, strong performance in outdoor and exposed installations. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C).
Maintenance and OEM teams specify it across HVAC and refrigeration, brake and phosphate ester systems, and outdoor equipment.
Stocked as E2X40 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description 2MM CS X 40MM ID BLACK EPDM 70D
Actual Outside Diameter 44 mm (1.73 inch)
Actual Cross Section 2 mm (0.079 inch)
Actual Inside Diameter 40 mm (1.575 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity