-257 BROWN FKM 75D O-RING

VB75257 is an AS568-257 brown Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 5.859 in (148.82 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.137 in (155.88 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to chlorinated solvents, aromatic hydrocarbons, and engine and transmission fluids. Viton® (FKM) is known for outstanding high-temperature capability and very low compression set at elevated temperature. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It is not the right choice where amines or hot water and steam are present.

You will find this material specified across semiconductor equipment, oil and gas, and high-temperature process equipment.

This item is sold individually under part number VB75257. Unit weight is approximately 9.6967 g and nominal inside diameter is listed as 5 7/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.