APG stocks the TFE017, an AS568-017 white PTFE (Teflon) 55 Shore D O-Ring supplied with an inside diameter of 0.676 in (17.17 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.816 in (20.73 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.
As a material, PTFE (Teflon) is known for one of the lowest coefficients of friction of any solid and near-universal chemical inertness. The material holds up against solvents, strong acids and bases, and oxidizing media. 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.
It sees regular use in pharmaceutical and biotech, semiconductor fabrication, and laboratory equipment.
Order part number TFE017, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 568-017 PTFE ORINGS FDA
uf_description2 .676" (17.17MM) ID X .070" (1.78MM) C
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 0.676 inch (17.17 mm)
Actual_OD 0.816 inch (20.73 )
ProductCode Description O-Rings - Bulk - Premium