568-366 PTFE ORINGS FDA

TFE366 is an AS568-366 white PTFE (Teflon) 55 Shore D O-Ring supplied with an inside diameter of 7.225 in (183.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.645 in (194.18 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

PTFE (Teflon) is specified here for excellent dielectric properties and near-universal chemical inertness. It resists steam, strong acids and bases, and oxidizing media. Published continuous service range is -65°F (-53.9°C) to 500°F (260°C). It is not the right choice where elemental fluorine at temperature or molten alkali metals are present.

You will find this material specified across food and beverage, laboratory equipment, and semiconductor fabrication.

Stocked as TFE366 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.