The E70376 is an AS568-376 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 9.725 in (247.02 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.145 in (257.68 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.
This material stands up to dilute acids and alkalis, water and steam, and ozone, UV and weathering. That behavior comes from the compound itself: EPDM (EPR) delivers outstanding weather, ozone and sunlight resistance, excellent hot water and steam resistance. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). Exposure to aromatic hydrocarbons or mineral oil-based lubricants will shorten service life.
Maintenance and OEM teams specify it across solar and roofing assemblies, potable water applications, and outdoor equipment.
Reference part number E70376 when ordering; the item is sold individually. Unit weight is approximately 20.749 g and nominal inside diameter is listed as 9 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description -376 BLACK EPDM 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 9.725 inch (247.02 mm)
Actual Outside Diameter 10.145 inch (257.68 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity