-363 BROWN FKM 90D O-RING

Ordered as VB90363, this is an AS568-363 brown Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 6.475 in (164.47 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 6.895 in (175.13 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Viton® (FKM) is specified here for industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. The compound resists aggressive chemicals, aromatic hydrocarbons, and many acids. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where low-molecular-weight organic acids or amines are present.

Maintenance and OEM teams specify it across aerospace, chemical processing, and high-temperature process equipment.

VB90363 ships individually. Unit weight is approximately 26.8084 g and nominal inside diameter is listed as 6 1/2 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.