Ordered as E70131, this is an AS568-131 black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 1.674 in (42.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.88 in (47.75 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
It resists ozone, UV and weathering, water and steam, and phosphate ester hydraulic fluids. That behavior comes from the compound itself: EPDM (EPR) is known for outstanding weather, ozone and sunlight 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). Exposure to petroleum oils and fuels or aromatic hydrocarbons will shorten service life.
You will find this material specified across HVAC and refrigeration, water and steam systems, and solar and roofing assemblies.
Reference part number E70131 when ordering; the item is sold individually. Unit weight is approximately 0.895 g and nominal inside diameter is listed as 1 11/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -131 BLACK EPDM 70D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 1.674 inch (42.52 mm)
Actual Outside Diameter 1.88 inch (47.75 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity