2103-454 PTFE S/T BUP FDA

This back-up ring is supplied in AS568-454 white PTFE (Teflon) 55 Shore D supplied with an inside diameter of 12.475 in (316.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 13.025 in (330.84 mm), catalogued under part number TST454. It allows a standard o-ring to operate at higher pressures than it could unsupported.

This material stands up to nearly all industrial chemicals, oxidizing media, and solvents. PTFE (Teflon) delivers near-universal chemical inertness and a very wide continuous service temperature range. The material carries a published service range of -65°F (-53.9°C) to 500°F (260°C).

Common environments for this compound include chemical processing, laboratory equipment, and semiconductor fabrication.

Order part number TST454, sold individually. Nominal inside diameter is listed as 12 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.