Part number TEV80252 is an AS568-252 black PTFE-Encapsulated Viton® 90 Shore A O-Ring built to an inside diameter of 5.234 in (132.94 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.512 in (140 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
This material stands up to steam, strong acids and solvents, and aggressive oxidizers. That behavior comes from the compound itself: PTFE-Encapsulated Viton® delivers chemical inertness of PTFE with the memory of a rubber o-ring and a non-stick sealing surface that resists fouling. Service temperature is rated from -75°F (-59.4°C) through 400°F (204.4°C). Applications involving service requiring tight-radius dynamic flexing or installation over sharp edges without care call for a different compound.
Typical settings include semiconductor equipment, aggressive-media valves and pumps, and chemical processing.
Order part number TEV80252, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 568-252 FEP ENCAPSULATED VITON ORING
uf_description2 90 DUROMETER
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 5.234 inch (132.94 mm)
Actual_OD 5.512 inch (140 mm)
ProductCode Description O-Rings - Bulk - Premium