Ordered as E70NSF224, this is an AS568-224 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 1.734 in (44.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.012 in (51.1 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
As a material, EPDM (EPR) is specified for good electrical insulating characteristics, strong performance in outdoor and exposed installations. This material stands up to water and steam, brake fluid, and ketones. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C). It is not the right choice where mineral oil-based lubricants or aromatic hydrocarbons are present.
The compound meets FDA requirements for food contact and carries NSF listing. It sees regular use in water and steam systems, outdoor equipment, and brake and phosphate ester systems.
This item is sold individually under part number E70NSF224. Unit weight is approximately 1.71 g and nominal inside diameter is listed as 1 3/4 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -224 BLACK EPDM 70D NSF O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 1.734 inch (44.04 mm)
Actual Outside Diameter 2.012 inch (51.1 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable