-244 BLACK EPDM 70D NSF O-RING

The E70NSF244 is an AS568-244 black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 4.234 in (107.54 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.512 in (114.6 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to brake fluid, water and steam, and ketones. EPDM (EPR) is specified for outstanding weather, ozone and sunlight resistance, excellent hot water and steam resistance. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). Exposure to petroleum oils and fuels or mineral oil-based lubricants will shorten service life.

The compound meets FDA requirements for food contact and carries NSF listing. Maintenance and OEM teams specify it across potable water applications, solar and roofing assemblies, and brake and phosphate ester systems.

Stocked as E70NSF244 and sold individually. Unit weight is approximately 3.903 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.