568-148 PTFE ORINGS FDA

APG stocks the TFE148, an AS568-148 white PTFE (Teflon) 55 Shore D O-Ring built to an inside diameter of 2.737 in (69.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.943 in (74.75 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

PTFE (Teflon) is valued for a very wide continuous service temperature range and one of the lowest coefficients of friction of any solid. It resists nearly all industrial chemicals, strong acids and bases, and oxidizing media. The material carries a published service range of -65°F (-53.9°C) to 500°F (260°C). Verify compatibility before use with molten alkali metals or elemental fluorine at temperature.

Maintenance and OEM teams specify it across chemical processing, semiconductor fabrication, and laboratory equipment.

This item is sold individually under part number TFE148. Nominal inside diameter is listed as 2 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.