-346 BROWN FKM 90D O-RING

VB90346 is an AS568-346 brown Viton® (FKM) 90 Shore A O-Ring built to an inside diameter of 4.1 in (104.14 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.52 in (114.81 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

It resists petroleum oils and fuels, many acids, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) is specified for the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in hot water and steam or amines.

Maintenance and OEM teams specify it across automotive fuel systems, semiconductor equipment, and chemical processing.

Reference part number VB90346 when ordering; the item is sold individually. Unit weight is approximately 16.854 g and nominal inside diameter is listed as 4 1/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.