The E70NSF234 is an AS568-234 black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 2.984 in (75.79 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.262 in (82.85 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
EPDM (EPR) is known for very good flexibility at low temperature and good electrical insulating characteristics. The material holds up against brake fluid, ozone, UV and weathering, and phosphate ester hydraulic fluids. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C).
The compound meets FDA requirements for food contact, carries NSF listing, and is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across brake and phosphate ester systems, outdoor equipment, and potable water applications.
This item is sold individually under part number E70NSF234. Unit weight is approximately 2.843 g and nominal inside diameter is listed as 3 inch. Check the compound against your process media, pressure and temperature before committing to a design.
description -234 BLACK EPDM 70D NSF O-RING
uf_description2 0.139" (3.53MM) CS X 2.984" (75.79MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 2.984 inch (75.79 mm)
Actual_OD 3.262 inch (82.85 mm)
ProductCode Description O-Rings - FDA / Metal Detectable