568-351 FEP ENCAPSULATED SILICONE

Part number TES70351 is an AS568-351 red PTFE-Encapsulated Silicone 70 Shore A O-Ring measuring an inside diameter of 4.725 in (120.02 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.145 in (130.68 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Supplementary detail from the product record: ORING 70 Durometer.

PTFE-Encapsulated Silicone is specified here for strong resistance to permeation and seamless PTFE jacket over a resilient silicone core. The material holds up against steam, nearly all process chemicals, and wide temperature swings. Published continuous service range is -75°F (-59.4°C) to 400°F (204.4°C). Exposure to installation over sharp edges or tight-radius dynamic flexing will shorten service life.

Typical settings include chemical processing, cryogenic and high-temperature equipment, and pharmaceutical manufacturing.

TES70351 ships individually. Nominal inside diameter is listed as 4 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.