4MM CS X 142MM ID BLACK FKM 75D

Part number V4X142 is a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 142 mm (5.591 in), a cross section of 4 mm (0.157 in), and an outside diameter of 150 mm (5.91 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists chlorinated solvents, engine and transmission fluids, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) offers the industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Exposure to low-molecular-weight organic acids or amines will shorten service life.

Common environments for this compound include oil and gas, high-temperature process equipment, and aerospace.

Order part number V4X142, sold individually. Unit weight is approximately 10.459 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.