-238 BROWN FKM 90D O-RING

This o-ring is supplied in AS568-238 brown Viton® (FKM) 90 Shore A built to an inside diameter of 3.484 in (88.49 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.762 in (95.55 mm), catalogued under part number VB90238. It compresses into its gland to block fluid or gas migration across a joint.

Viton® (FKM) is specified here for excellent resistance to compression set and permeation, industry benchmark where nitrile reaches its thermal limit. The material holds up against aromatic hydrocarbons, many acids, 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 amines or ketones and esters.

Typical settings include semiconductor equipment, aerospace, and automotive fuel systems.

This item is sold individually under part number VB90238. Unit weight is approximately 6.3916 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.