-316 WHITE PTFE 55D O-RING

This o-ring is supplied in AS568-316 white PTFE (Teflon) 55 Shore D built to an inside diameter of 0.85 in (21.59 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.27 in (32.26 mm), catalogued under part number TFE316. It compresses into its gland to block fluid or gas migration across a joint.

It resists nearly all industrial chemicals, oxidizing media, and steam. PTFE (Teflon) is known for excellent dielectric properties and near-universal chemical inertness. Service temperature is rated from -65°F (-53.9°C) through 500°F (260°C). Applications involving elemental fluorine at temperature or molten alkali metals call for a different compound.

Maintenance and OEM teams specify it across laboratory equipment, semiconductor fabrication, and pharmaceutical and biotech.

Order part number TFE316, sold individually. Nominal inside diameter is listed as 7/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.