The E5.7X319.3 is a black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 319.3 mm (12.571 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 330.7 mm (13.02 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Source specification: Metric O-RING, JIS G320.
This material stands up to ketones, phosphate ester hydraulic fluids, and ozone, UV and weathering. That behavior comes from the compound itself: EPDM (EPR) is valued for outstanding weather, ozone and sunlight resistance, very good flexibility at low temperature. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). It should not be specified for service in aromatic hydrocarbons or mineral oil-based lubricants.
Typical settings include water and steam systems, HVAC and refrigeration, and solar and roofing assemblies.
This item is sold individually under part number E5.7X319.3. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 5.7MM CS X 319.3MM ID BLACK EPDM 70D
uf_description2 METRIC O-RING, JIS G320
Actual_OD 330.7 mm (13.02 inch)
Actual_CS 5.7 mm (0.224 inch)
Actual_ID 319.3 mm (12.571 inch)
ProductCode Description O-Rings - Metric - Commodity