APG stocks the E4X80, a black EPDM (EPR) 70 Shore A O-Ring with an inside diameter of 80 mm (3.15 in), a cross section of 4 mm (0.157 in), and an outside diameter of 88 mm (3.46 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
It resists ozone, UV and weathering, dilute acids and alkalis, and brake fluid. EPDM (EPR) is known for good electrical insulating characteristics, outstanding weather, ozone and sunlight resistance. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). Exposure to petroleum oils and fuels or aromatic hydrocarbons will shorten service life.
Maintenance and OEM teams specify it across outdoor equipment, solar and roofing assemblies, and brake and phosphate ester systems.
Order part number E4X80, sold individually. Unit weight is approximately 3.884 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description 4MM CS X 80MM ID BLACK EPDM 70D
Actual Outside Diameter 88 mm (3.46 inch)
Actual Cross Section 4 mm (0.157 inch)
Actual Inside Diameter 80 mm (3.15 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity