-339 BROWN FKM 90D O-RING

This o-ring is supplied in AS568-339 brown Viton® (FKM) 90 Shore A measuring an inside diameter of 3.225 in (81.92 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.645 in (92.58 mm), catalogued under part number VB90339. It remains the most cost-effective sealing element available for pressurized assemblies.

It resists chlorinated solvents, engine and transmission fluids, and petroleum oils and fuels. Viton® (FKM) is specified for the industry benchmark where nitrile reaches its thermal limit 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 low-molecular-weight organic acids or hot water and steam are present.

It sees regular use in aerospace, high-temperature process equipment, and oil and gas.

Reference part number VB90339 when ordering; the item is sold individually. Unit weight is approximately 13.571 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.