-123 BLACK FKM 90D O-RING

V90123 is an AS568-123 black Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 1.174 in (29.82 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.38 in (35.05 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Viton® (FKM) is specified here for outstanding high-temperature capability and industry benchmark where nitrile reaches its thermal limit. The compound resists aromatic hydrocarbons, chlorinated solvents, and many acids. 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, automotive fuel systems, and chemical processing.

Stocked as V90123 and sold individually. Unit weight is approximately 1.0232 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. 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.