**568-394 PTFE ORINGS FDA

This o-ring is supplied in AS568-394 white PTFE (Teflon) 55 Shore D with an inside diameter of 24.94 in (633.48 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 25.36 in (644.14 mm), catalogued under part number TFE394. It creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists oxidizing media, nearly all industrial chemicals, and solvents. PTFE (Teflon) offers non-stick, non-contaminating surface characteristics and near-universal chemical inertness. The material carries a published service range of -65°F (-53.9°C) to 500°F (260°C). Applications involving molten alkali metals or elemental fluorine at temperature call for a different compound.

Common environments for this compound include chemical processing, food and beverage, and aggressive-media pipelines.

Order part number TFE394, sold individually. Nominal inside diameter is listed as 25 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.