5.7MM CS X 259.3MM ID BLACK EPDM 70D

This o-ring is supplied in black EPDM (EPR) 70 Shore A with an inside diameter of 259.3 mm (10.209 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 270.7 mm (10.66 in), catalogued under part number E5.7X259.3. It provides a reliable static or dynamic seal by deforming into its gland under assembly load. Source specification: Metric O-RING, JIS G260.

The material holds up against brake fluid, dilute acids and alkalis, and ozone, UV and weathering. That behavior comes from the compound itself: EPDM (EPR) is widely chosen for excellent hot water and steam resistance, good electrical insulating characteristics. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). Applications involving aromatic hydrocarbons or petroleum oils and fuels call for a different compound.

It sees regular use in potable water applications, water and steam systems, and outdoor equipment.

This item is sold individually under part number E5.7X259.3. Check the compound against your process media, pressure and temperature before committing to a design.