2103-026 PTFE S/T BUP FDA

TST026 is an AS568-026 white PTFE (Teflon) 55 Shore D Back-Up Ring with an inside diameter of 1.239 in (31.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.379 in (35.03 mm). In service, this back-up ring allows a standard o-ring to operate at higher pressures than it could unsupported.

Expect good resistance to oxidizing media, nearly all industrial chemicals, and solvents. That behavior comes from the compound itself: PTFE (Teflon) delivers non-stick, non-contaminating surface characteristics and a very wide continuous service temperature range. The material carries a published service range of -65°F (-53.9°C) to 500°F (260°C).

It sees regular use in pharmaceutical and biotech, aggressive-media pipelines, and chemical processing.

This item is sold individually under part number TST026. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.