This o-ring is supplied in AS568-370 red PTFE-Encapsulated Silicone 70 Shore A with an inside diameter of 8.225 in (208.92 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.645 in (219.58 mm), catalogued under part number TES70370. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. The catalog record notes: ORING 70 Durometer.
PTFE-Encapsulated Silicone is known for a non-contaminating, non-stick sealing surface and excellent recovery across extreme temperature cycling. The material holds up against steam, strong acids and solvents, and wide temperature swings. Continuous operating temperature is published at -75°F (-59.4°C) to 400°F (204.4°C). It is not the right choice where tight-radius dynamic flexing or installation over sharp edges are present.
Maintenance and OEM teams specify it across food and beverage processing, chemical processing, and cryogenic and high-temperature equipment.
TES70370 ships individually. 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.
Description 568-370 FEP ENCAPSULATED SILICONE
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 8.225 inch (208.92 mm)
Actual Outside Diameter 8.645 inch (219.58 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium