E5.7X74.2 is a black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 74.2 mm (2.921 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 85.6 mm (3.37 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
The material holds up against ketones, brake fluid, and dilute acids and alkalis. That behavior comes from the compound itself: EPDM (EPR) offers strong performance in outdoor and exposed installations, good electrical insulating characteristics. 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.
It sees regular use in water and steam systems, brake and phosphate ester systems, and solar and roofing assemblies.
E5.7X74.2 ships individually. Unit weight is approximately 0.0073 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description 5.7MM CS X 74.2MM ID BLACK EPDM 70D
Actual Outside Diameter 85.6 mm (3.37 inch)
Actual Cross Section 5.7 mm (0.224 inch)
Actual Inside Diameter 74.2 mm (2.921 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity