4MM CS X 118MM ID BLACK FKM 75D

This o-ring is supplied in black Viton® (FKM) 75 Shore A with an inside diameter of 118 mm (4.646 in), a cross section of 4 mm (0.157 in), and an outside diameter of 126 mm (4.96 in), catalogued under part number V4X118. It compresses into its gland to block fluid or gas migration across a joint.

The material holds up against aggressive chemicals, aromatic hydrocarbons, and engine and transmission fluids. Viton® (FKM) is valued for outstanding high-temperature capability, excellent resistance to compression set and permeation. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Exposure to amines or hot water and steam will shorten service life.

Maintenance and OEM teams specify it across automotive fuel systems, high-temperature process equipment, and semiconductor equipment.

V4X118 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.