3.5MM CS X 13MM ID BLACK FKM 75D

V3.5X13 is a black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 13 mm (0.512 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 20 mm (0.79 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against engine and transmission fluids, aggressive chemicals, and many acids. That behavior comes from the compound itself: Viton® (FKM) is known for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or ketones and esters call for a different compound.

Maintenance and OEM teams specify it across semiconductor equipment, aerospace, and high-temperature process equipment.

V3.5X13 ships individually. Unit weight is approximately 0.918 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.