APG stocks the E70121, an AS568-121 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 1.049 in (26.64 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.255 in (31.88 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Expect good resistance to ozone, UV and weathering, water and steam, and phosphate ester hydraulic fluids. EPDM (EPR) is specified for very good flexibility at low temperature, excellent hot water and steam resistance. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). Verify compatibility before use with aromatic hydrocarbons or mineral oil-based lubricants.
You will find this material specified across outdoor equipment, brake and phosphate ester systems, and solar and roofing assemblies.
Stocked as E70121 and sold individually. Unit weight is approximately 0.6 g. Review your operating media and conditions against this specification before installation.
Description -121 BLACK EPDM 70D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 1.049 inch (26.64 mm)
Actual Outside Diameter 1.255 inch (31.88 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity