1.78MM CS X 6.75MM ID BLACK EPDM 70D

APG stocks the E1.78X6.75, a black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 6.75 mm (0.266 in), a cross section of 1.78 mm (0.07 in), and an outside diameter of 10.31 mm (0.41 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to brake fluid, ozone, UV and weathering, and phosphate ester hydraulic fluids. That behavior comes from the compound itself: EPDM (EPR) is valued for strong performance in outdoor and exposed installations, good electrical insulating characteristics. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). Applications involving aromatic hydrocarbons or petroleum oils and fuels call for a different compound.

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

E1.78X6.75 ships individually. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.