-312 BLACK FKM 90D O-RING

The V90312 is an AS568-312 black Viton® (FKM) 90 Shore A O-Ring built to an inside diameter of 0.6 in (15.24 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.02 in (25.91 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to aromatic hydrocarbons, many acids, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) is known for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C).

Common environments for this compound include semiconductor equipment, chemical processing, and automotive fuel systems.

V90312 ships individually. Unit weight is approximately 2.6635 g and nominal inside diameter is listed as 5/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.