-139 BLACK EPDM 70D O-RING

Part number E70139 is an AS568-139 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 2.175 in (55.25 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.381 in (60.48 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The compound resists dilute acids and alkalis, ketones, and ozone, UV and weathering. EPDM (EPR) is widely chosen for outstanding weather, ozone and sunlight resistance, excellent hot water and steam resistance. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). Applications involving mineral oil-based lubricants or petroleum oils and fuels call for a different compound.

It sees regular use in potable water applications, brake and phosphate ester systems, and outdoor equipment.

Reference part number E70139 when ordering; the item is sold individually. Unit weight is approximately 0.0011 g and nominal inside diameter is listed as 2 3/16 inch. Review your operating media and conditions against this specification before installation.