This o-ring is supplied in black EPDM (EPR) 70 Shore A measuring an inside diameter of 25 mm (0.984 in), a cross section of 3 mm (0.118 in), and an outside diameter of 31 mm (1.22 in), catalogued under part number E3X25. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.
EPDM (EPR) is specified here for good electrical insulating characteristics, outstanding weather, ozone and sunlight resistance. The compound resists ketones, ozone, UV and weathering, and water and steam. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service. Verify compatibility before use with aromatic hydrocarbons or petroleum oils and fuels.
It sees regular use in brake and phosphate ester systems, solar and roofing assemblies, and water and steam systems.
This item is sold individually under part number E3X25. Unit weight is approximately 0.733 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 3MM CS X 25MM ID BLACK EPDM 70D
uf_description2 METRIC O-RING
Actual_OD 31 mm (1.22 inch)
Actual_CS 3 mm (0.118 inch)
Actual_ID 25 mm (0.984 inch)
ProductCode Description O-Rings - Metric - Commodity