-364 BROWN FKM 90D O-RING

APG stocks the VB90364, an AS568-364 brown Viton® (FKM) 90 Shore A O-Ring built to an inside diameter of 6.725 in (170.82 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.145 in (181.48 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to chlorinated solvents, petroleum oils and fuels, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) is known 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 amines or hot water and steam will shorten service life.

Maintenance and OEM teams specify it across aerospace, high-temperature process equipment, and chemical processing.

Stocked as VB90364 and sold individually. Nominal inside diameter is listed as 6 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. 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.