568-261 FEP ENCAPSULATED SILICONE

Ordered as TES70261, this is an AS568-261 red PTFE-Encapsulated Silicone 70 Shore A O-Ring measuring an inside diameter of 6.734 in (171.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.012 in (178.1 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies. Additional detail on this item: ORING 70 Durometer.

It resists steam, wide temperature swings, and strong acids and solvents. That behavior comes from the compound itself: PTFE-Encapsulated Silicone is widely chosen for excellent recovery across extreme temperature cycling and a non-contaminating, non-stick sealing surface. The material carries a published service range of -75°F (-59.4°C) to 400°F (204.4°C). It should not be specified for service in tight-radius dynamic flexing or installation over sharp edges.

Typical settings include pharmaceutical manufacturing, food and beverage processing, and chemical processing.

Reference part number TES70261 when ordering; the item is sold individually. Nominal inside diameter is listed as 6 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.