Part number TFE402 is an AS568-402 white PTFE (Teflon) 55 Shore D O-Ring measuring an inside diameter of 1.6 in (40.64 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.15 in (54.61 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
PTFE (Teflon) is specified here for very wide continuous service temperature range and non-stick, non-contaminating surface characteristics. Expect good resistance to strong acids and bases, solvents, and oxidizing media. Published continuous service range is -65°F (-53.9°C) to 500°F (260°C).
You will find this material specified across aggressive-media pipelines, food and beverage, and semiconductor fabrication.
This item is sold individually under part number TFE402. Nominal inside diameter is listed as 1 5/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 568-402 PTFE ORINGS FDA
uf_description2 1.600" (40.64MM) ID X .275" (6.99MM)
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 1.6 inch (40.64 mm)
Actual_OD 2.15 inch (54.61 mm)
ProductCode Description O-Rings - Bulk - Premium