Ordered as TFE344, this is an AS568-344 white PTFE (Teflon) 55 Shore D O-Ring built to an inside diameter of 3.85 in (97.79 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.27 in (108.46 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
PTFE (Teflon) is specified for excellent dielectric properties and non-stick, non-contaminating surface characteristics. Expect good resistance to strong acids and bases, solvents, and nearly all industrial chemicals. Rated temperature range runs from -65°F (-53.9°C) to 500°F (260°C) in continuous service. It is not the right choice where molten alkali metals or service requiring elastic recovery are present.
You will find this material specified across aggressive-media pipelines, chemical processing, and laboratory equipment.
Reference part number TFE344 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description 568-344 PTFE ORINGS FDA
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 3.85 inch (97.79 mm)
Actual Outside Diameter 4.27 inch (108.46 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium