3.5MM CS X 21MM ID BLACK FKM 75D

Ordered as V3.5X21, this is a black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 21 mm (0.827 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 28 mm (1.1 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to many acids, aromatic hydrocarbons, and chlorinated solvents. Viton® (FKM) is known for the industry benchmark where nitrile reaches its thermal limit and long service life in hot, chemically aggressive environments. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service.

Common environments for this compound include oil and gas, semiconductor equipment, and chemical processing.

Reference part number V3.5X21 when ordering; the item is sold individually. Unit weight is approximately 1.3923 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.