3.5MM CS X 52MM ID BLACK FKM 75D

Ordered as V3.5X52, this is a black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 52 mm (2.047 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 59 mm (2.32 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists petroleum oils and fuels, aggressive chemicals, and many acids. Viton® (FKM) is known for excellent resistance to compression set and permeation, the industry benchmark where nitrile reaches its thermal limit. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Applications involving hot water and steam or amines call for a different compound.

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

Order part number V3.5X52, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.