568-259 FEP ENCAPSULATED SILICONE

Part number TES70259 is an AS568-259 red PTFE-Encapsulated Silicone 70 Shore A O-Ring with an inside diameter of 6.234 in (158.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.512 in (165.4 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Additional detail on this item: ORING 70 Durometer.

It resists wide temperature swings, strong acids and solvents, and steam. That behavior comes from the compound itself: PTFE-Encapsulated Silicone delivers excellent recovery across extreme temperature cycling and chemical inertness of PTFE with the wide temperature range of silicone. Service temperature is rated from -75°F (-59.4°C) through 400°F (204.4°C).

Maintenance and OEM teams specify it across pharmaceutical manufacturing, food and beverage processing, and cryogenic and high-temperature equipment.

Order part number TES70259, sold individually. Nominal inside diameter is listed as 6 1/4 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.