APG stocks the E70NSF108, an AS568-108 black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 0.237 in (6.02 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.443 in (11.25 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
The compound resists phosphate ester hydraulic fluids, brake fluid, and ozone, UV and weathering. EPDM (EPR) is valued for strong performance in outdoor and exposed installations, good electrical insulating characteristics. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service. Exposure to petroleum oils and fuels or mineral oil-based lubricants will shorten service life.
This o-ring meets FDA requirements for food contact and carries NSF listing. You will find this material specified across potable water applications, water and steam systems, and outdoor equipment.
Order part number E70NSF108, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description -108 BLACK EPDM 70D NSF O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 0.237 inch (6.02 mm)
Actual Outside Diameter 0.443 inch (11.25 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable