-259 BLACK FKM 90D O-RING

Ordered as V90259, this is an AS568-259 black Viton® (FKM) 90 Shore A O-Ring measuring an inside diameter of 6.234 in (158.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.512 in (165.4 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Viton® (FKM) is widely chosen for very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. The material holds up against many acids, chlorinated solvents, and aggressive chemicals. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with hot water and steam or ketones and esters.

It sees regular use in high-temperature process equipment, chemical processing, and semiconductor equipment.

Order part number V90259, sold individually. Unit weight is approximately 9.0176 g and nominal inside diameter is listed as 6 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.