APG stocks the E70449, an AS568-449 black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 9.975 in (253.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 10.525 in (267.34 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
EPDM (EPR) is specified for very good flexibility at low temperature, outstanding weather, ozone and sunlight resistance. Expect good resistance to brake fluid, ozone, UV and weathering, and dilute acids and alkalis. The material carries a published service range of -65°F (-53.9°C) to 300°F (148.9°C). Applications involving petroleum oils and fuels or aromatic hydrocarbons call for a different compound.
You will find this material specified across potable water applications, solar and roofing assemblies, and HVAC and refrigeration.
E70449 ships individually. Unit weight is approximately 35.24 g and nominal inside diameter is listed as 10 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. 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 -449 BLACK EPDM 70D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 9.975 inch (253.37 mm)
Actual Outside Diameter 10.525 inch (267.34 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity