Ordered as E70446, this is an AS568-446 black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 8.475 in (215.27 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.025 in (229.24 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, EPDM (EPR) is widely chosen for good electrical insulating characteristics, outstanding weather, ozone and sunlight resistance. The compound resists ketones, brake fluid, and dilute acids and alkalis. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). It is not the right choice where mineral oil-based lubricants or aromatic hydrocarbons are present.
Common environments for this compound include solar and roofing assemblies, HVAC and refrigeration, and brake and phosphate ester systems.
Order part number E70446, sold individually. Unit weight is approximately 0.0296 g. Check the compound against your process media, pressure and temperature before committing to a design. 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 -446 BLACK EPDM 70D O-RING
uf_description2 0.275" (6.99MM) CS X 8.475" (215.26MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 8.475 inch (215.27 mm)
Actual_OD 9.025 inch (229.24 mm)
ProductCode Description O-Rings - Bulk - Commodity