-407 BLACK EPDM 70D O-RING

APG stocks the E70407, an AS568-407 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 2.225 in (56.52 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.775 in (70.49 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to phosphate ester hydraulic fluids, water and steam, and ketones. That behavior comes from the compound itself: EPDM (EPR) is known for very good flexibility at low temperature, excellent hot water and steam resistance. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service. It should not be specified for service in mineral oil-based lubricants or petroleum oils and fuels.

You will find this material specified across potable water applications, outdoor equipment, and solar and roofing assemblies.

Reference part number E70407 when ordering; the item is sold individually. Unit weight is approximately 8.9677 g and nominal inside diameter is listed as 2 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.