568-225 FLUOROSILICONE 70 DURO ORINGS

The FS70225 is an AS568-225 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring with an inside diameter of 1.859 in (47.22 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.137 in (54.28 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Fluorosilicone (FVMQ) is specified here for standard choice for static aerospace fuel system seals and silicone's low-temperature flexibility combined with fuel resistance. Expect good resistance to aromatic fuels and jet fuel, extreme cold, and petroleum oils. 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 military ground vehicles, high-altitude equipment, and aviation fuel systems.

This item is sold individually under part number FS70225. Unit weight is approximately 2.39 g and nominal inside diameter is listed as 1 7/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.