568-321 PTFE ORINGS FDA

This o-ring is supplied in AS568-321 white PTFE (Teflon) 55 Shore D measuring an inside diameter of 1.162 in (29.51 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.582 in (40.18 mm), catalogued under part number TFE321. It delivers dependable bidirectional sealing in a compact groove envelope.

As a material, PTFE (Teflon) is known for non-stick, non-contaminating surface characteristics and one of the lowest coefficients of friction of any solid. The material holds up against nearly all industrial chemicals, strong acids and bases, and solvents. Published continuous service range is -65°F (-53.9°C) to 500°F (260°C). It is not the right choice where molten alkali metals or elemental fluorine at temperature are present.

Maintenance and OEM teams specify it across aggressive-media pipelines, chemical processing, and laboratory equipment.

Reference part number TFE321 when ordering; the item is sold individually. Nominal inside diameter is listed as 1 3/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.