4MM CS X 90MM ID BLACK EPDM 70D

APG stocks the E4X90, a black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 90 mm (3.543 in), a cross section of 4 mm (0.157 in), and an outside diameter of 98 mm (3.86 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, EPDM (EPR) is known for good electrical insulating characteristics, strong performance in outdoor and exposed installations. It resists dilute acids and alkalis, ozone, UV and weathering, and brake fluid. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C). Verify compatibility before use with mineral oil-based lubricants or petroleum oils and fuels.

Maintenance and OEM teams specify it across brake and phosphate ester systems, potable water applications, and outdoor equipment.

E4X90 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.