APG stocks the V2X21, a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 21 mm (0.827 in), a cross section of 2 mm (0.079 in), and an outside diameter of 25 mm (0.98 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
This material stands up to engine and transmission fluids, chlorinated solvents, and aromatic hydrocarbons. Viton® (FKM) is valued for the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Exposure to ketones and esters or hot water and steam will shorten service life.
Typical settings include semiconductor equipment, high-temperature process equipment, and oil and gas.
Reference part number V2X21 when ordering; the item is sold individually. Unit weight is approximately 0.4233 g. 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.
description 2MM CS X 21MM ID BLACK FKM 75D
uf_description2 METRIC O-RING
Actual_OD 25 mm (0.98 inch)
Actual_CS 2 mm (0.079 inch)
Actual_ID 21 mm (0.827 inch)
ProductCode Description O-Rings - Metric - Commodity