**568-126 FLUOROSILICONE 70 DUROORINGS

This o-ring is supplied in AS568-126 blue Fluorosilicone (FVMQ) 70 Shore A built to an inside diameter of 1.362 in (34.59 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.568 in (39.83 mm), catalogued under part number FS70126. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists chlorinated solvents, ozone and weathering, and aromatic fuels and jet fuel. That behavior comes from the compound itself: Fluorosilicone (FVMQ) is valued for excellent ozone and UV stability, the standard choice for static aerospace fuel system seals. The material carries a published service range of -80°F (-62.2°C) to 350°F (176.7°C).

You will find this material specified across aerospace and defense, high-altitude equipment, and aviation fuel systems.

This item is sold individually under part number FS70126. Nominal inside diameter is listed as 1 3/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.