3.5MM CS X 80MM ID BLACK FKM 75D

V3.5X80 is a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 80 mm (3.15 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 87 mm (3.43 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists aggressive chemicals, engine and transmission fluids, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for very low compression set at elevated temperature and outstanding high-temperature capability. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or ketones and esters are present.

Maintenance and OEM teams specify it across semiconductor equipment, oil and gas, and chemical processing.

V3.5X80 ships individually. Unit weight is approximately 4.5935 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.