Part number E4X25 is a black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 25 mm (0.984 in), a cross section of 4 mm (0.157 in), and an outside diameter of 33 mm (1.3 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, EPDM (EPR) is known for excellent hot water and steam resistance, outstanding weather, ozone and sunlight resistance. It resists water and steam, brake fluid, and ketones. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). It is not the right choice where aromatic hydrocarbons or mineral oil-based lubricants are present.
It sees regular use in potable water applications, solar and roofing assemblies, and outdoor equipment.
Stocked as E4X25 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 4MM CS X 25MM ID BLACK EPDM 70D
uf_description2 METRIC O-RING
Actual_OD 33 mm (1.3 inch)
Actual_CS 4 mm (0.157 inch)
Actual_ID 25 mm (0.984 inch)
ProductCode Description O-Rings - Metric - Commodity