The E70904 is an AS568-904 black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 0.351 in (8.92 mm), a cross section of 0.072 in (1.83 mm), and an outside diameter of 0.495 in (12.57 mm). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, EPDM (EPR) offers excellent hot water and steam resistance, outstanding weather, ozone and sunlight resistance. This material stands up to water and steam, dilute acids and alkalis, and brake fluid. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C). Applications involving mineral oil-based lubricants or petroleum oils and fuels call for a different compound.
Maintenance and OEM teams specify it across water and steam systems, outdoor equipment, and potable water applications.
This item is sold individually under part number E70904. Unit weight is approximately 0.103 g and nominal inside diameter is listed as 1/4 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description -904 BLACK EPDM 70D O-RING
uf_description2 0.072" (1.83MM) CS X 0.351" (8.92MM) ID
Actual_CS 0.072 inch (1.83 mm)
Actual_ID 0.351 inch (8.92 mm)
Actual_OD 0.495 inch (12.57 )
ProductCode Description O-Rings - Bulk - Commodity