Part number E70NSF223 is an AS568-223 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 1.609 in (40.87 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.887 in (47.93 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
It resists ketones, dilute acids and alkalis, and ozone, UV and weathering. EPDM (EPR) offers excellent hot water and steam resistance, strong performance in outdoor and exposed installations. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). Applications involving mineral oil-based lubricants or aromatic hydrocarbons call for a different compound.
The compound meets FDA requirements for food contact and carries NSF listing. You will find this material specified across solar and roofing assemblies, HVAC and refrigeration, and outdoor equipment.
This item is sold individually under part number E70NSF223. Unit weight is approximately 0.0016 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Description -223 BLACK EPDM 70D NSF O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 1.609 inch (40.87 mm)
Actual Outside Diameter 1.887 inch (47.93 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable