2.5MM CS X 21MM ID BLACK FKM 75D

The V2.5X21 is a black Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 21 mm (0.827 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 26 mm (1.02 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against chlorinated solvents, petroleum oils and fuels, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) delivers long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where hot water and steam or low-molecular-weight organic acids are present.

Maintenance and OEM teams specify it across aerospace, semiconductor equipment, and oil and gas.

Stocked as V2.5X21 and sold individually. Unit weight is approximately 0.6749 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.