-389 BROWN FKM 90D O-RING

The VB90389 is an AS568-389 brown Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 19.953 in (506.81 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 20.373 in (517.47 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Viton® (FKM) is known for outstanding high-temperature capability and very low compression set at elevated temperature. Expect good resistance to petroleum oils and fuels, aggressive chemicals, and aromatic hydrocarbons. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C).

You will find this material specified across oil and gas, high-temperature process equipment, and aerospace.

VB90389 ships individually. Nominal inside diameter is listed as 20 inch. 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.