-171 BLACK FKM 75D O-RING

This o-ring is supplied in AS568-171 black Viton® (FKM) 75 Shore A supplied with an inside diameter of 7.987 in (202.87 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.193 in (208.1 mm), catalogued under part number V75171. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists petroleum oils and fuels, many acids, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) delivers the industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Applications involving ketones and esters or amines call for a different compound.

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

Reference part number V75171 when ordering; the item is sold individually. Nominal inside diameter is listed as 8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.