-249 BLACK FKM 90D O-RING

This o-ring is supplied in AS568-249 black Viton® (FKM) 90 Shore A supplied with an inside diameter of 4.859 in (123.42 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.137 in (130.48 mm), catalogued under part number V90249. It compresses into its gland to block fluid or gas migration across a joint.

As a material, Viton® (FKM) is specified for outstanding high-temperature capability and very low compression set at elevated temperature. It resists chlorinated solvents, aggressive chemicals, and many acids. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. It should not be specified for service in amines or ketones and esters.

You will find this material specified across high-temperature process equipment, chemical processing, and semiconductor equipment.

V90249 ships individually. Unit weight is approximately 7.2821 g and nominal inside diameter is listed as 4 7/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.