4 MM (.157") BROWN O-RING CORD

Ordered as 0M283VB4, this is a brown Viton® (FKM) 75 Shore A O-Ring Cord Stock built to a cross section of 0.157 in (4 mm). The o-ring cord stock supports field repair of oversized or non-standard sealing grooves without a special tooling charge. The catalog record notes: Fluoroelastomer 75 Durometer.

The material holds up against petroleum oils and fuels, chlorinated solvents, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) delivers the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. Exposure to ketones and esters or amines will shorten service life.

Typical settings include aerospace, high-temperature process equipment, and automotive fuel systems.

Reference part number 0M283VB4 when ordering; the item is sold by the foot. Review your operating media and conditions against this specification before installation.