568-350 PTFE ORINGS FDA

APG stocks the TFE350, an AS568-350 white PTFE (Teflon) 55 Shore D O-Ring with an inside diameter of 4.6 in (116.84 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.02 in (127.51 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

PTFE (Teflon) is specified here for excellent dielectric properties and near-universal chemical inertness. The compound resists strong acids and bases, solvents, and nearly all industrial chemicals. Service temperature is rated from -65°F (-53.9°C) through 500°F (260°C).

Maintenance and OEM teams specify it across food and beverage, pharmaceutical and biotech, and aggressive-media pipelines.

Stocked as TFE350 and sold individually. Nominal inside diameter is listed as 4 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.