-341 BLACK EPDM 70D NSF O-RING

The E70NSF341 is an AS568-341 black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 3.475 in (88.27 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.895 in (98.93 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Expect good resistance to dilute acids and alkalis, brake fluid, and phosphate ester hydraulic fluids. EPDM (EPR) offers good electrical insulating characteristics, excellent hot water and steam resistance. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C). Applications involving petroleum oils and fuels or mineral oil-based lubricants call for a different compound.

This o-ring meets FDA requirements for food contact and carries NSF listing. It sees regular use in potable water applications, solar and roofing assemblies, and brake and phosphate ester systems.

Reference part number E70NSF341 when ordering; the item is sold individually. Unit weight is approximately 7.44 g and nominal inside diameter is listed as 3 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.