-240 BLACK EPDM 70D NSF O-RING

Part number E70NSF240 is an AS568-240 black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 3.734 in (94.84 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.012 in (101.9 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, EPDM (EPR) is widely chosen for excellent hot water and steam resistance, outstanding weather, ozone and sunlight resistance. The compound resists phosphate ester hydraulic fluids, brake fluid, and ozone, UV and weathering. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It is not the right choice where mineral oil-based lubricants or aromatic hydrocarbons are present.

This item meets FDA requirements for food contact and carries NSF listing. Maintenance and OEM teams specify it across outdoor equipment, solar and roofing assemblies, and HVAC and refrigeration.

Reference part number E70NSF240 when ordering; the item is sold individually. Unit weight is approximately 0.0035 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.