Ordered as E70381, this is an AS568-381 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 11.975 in (304.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 12.395 in (314.83 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.
EPDM (EPR) is valued for good electrical insulating characteristics, excellent hot water and steam resistance. The material holds up against brake fluid, ozone, UV and weathering, and dilute acids and alkalis. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It is not the right choice where petroleum oils and fuels or aromatic hydrocarbons are present.
Typical settings include solar and roofing assemblies, potable water applications, and outdoor equipment.
E70381 ships individually. Unit weight is approximately 26.27 g. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description -381 BLACK EPDM 70D O-RING
uf_description2 0.210" (5.33MM) CS X 11.975" (304.17MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 11.975 inch (304.17 mm)
Actual_OD 12.395 inch (314.83 mm)
ProductCode Description O-Rings - Bulk - Commodity