3MM CS X 20MM ID BLACK FKM 75D

Ordered as V3X20, this is a black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 20 mm (0.787 in), a cross section of 3 mm (0.118 in), and an outside diameter of 26 mm (1.02 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. The catalog record notes: Metric O-RING, JIS G20.

The material holds up against engine and transmission fluids, aggressive chemicals, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) is valued for very low compression set at elevated temperature and 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 low-molecular-weight organic acids or ketones and esters call for a different compound.

You will find this material specified across aerospace, oil and gas, and semiconductor equipment.

Order part number V3X20, sold individually. Unit weight is approximately 0.956 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.