568-427 FEP ENCAPSULATED SILICONE

Part number TES70427 is an AS568-427 red PTFE-Encapsulated Silicone 70 Shore A O-Ring built to an inside diameter of 4.725 in (120.02 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.275 in (133.99 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. Supplementary detail from the product record: ORING 70 Durometer.

PTFE-Encapsulated Silicone is known for strong resistance to permeation and chemical inertness of PTFE with the wide temperature range of silicone. This material stands up to strong acids and solvents, nearly all process chemicals, and wide temperature swings. Service temperature is rated from -75°F (-59.4°C) through 400°F (204.4°C). Applications involving installation over sharp edges or tight-radius dynamic flexing call for a different compound.

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

Reference part number TES70427 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation.