5.7MM CS X 74.6MM ID BLACK FKM 75D

Ordered as V5.7X74.6, this is a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 74.6 mm (2.937 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 86 mm (3.39 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. This item is further identified as Metric O-RING, JIS P75.

This material stands up to aromatic hydrocarbons, many acids, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) is specified for very low compression set at elevated temperature and outstanding high-temperature capability. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in low-molecular-weight organic acids or ketones and esters.

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

Reference part number V5.7X74.6 when ordering; the item is sold individually. Unit weight is approximately 11.938 g. Check the compound against your process media, pressure and temperature before committing to a design.