4MM CS X 21MM ID BLACK EPDM 70D

This o-ring is supplied in black EPDM (EPR) 70 Shore A supplied with an inside diameter of 21 mm (0.827 in), a cross section of 4 mm (0.157 in), and an outside diameter of 29 mm (1.14 in), catalogued under part number E4X21. It delivers dependable bidirectional sealing in a compact groove envelope.

EPDM (EPR) delivers good electrical insulating characteristics and very good flexibility at low temperature. It resists phosphate ester hydraulic fluids, ketones, and water and steam. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C).

You will find this material specified across water and steam systems, potable water applications, and HVAC and refrigeration.

Order part number E4X21, sold individually. Unit weight is approximately 1.29 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.