8.4MM CS X 319.5MM ID BLACK EPDM 70D

This o-ring is supplied in black EPDM (EPR) 70 Shore A measuring an inside diameter of 319.5 mm (12.579 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 336.3 mm (13.24 in), catalogued under part number E8.4X319.5. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. The catalog record notes: Metric O-RING, JIS P320.

As a material, EPDM (EPR) offers outstanding weather, ozone and sunlight resistance, good electrical insulating characteristics. The compound resists ketones, ozone, UV and weathering, and phosphate ester hydraulic fluids. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C). It is not the right choice where mineral oil-based lubricants or petroleum oils and fuels are present.

Maintenance and OEM teams specify it across brake and phosphate ester systems, potable water applications, and outdoor equipment.

Reference part number E8.4X319.5 when ordering; the item is sold individually. Unit weight is approximately 75.8772 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.