568-244 FLUOROSILICONE 70 DURO ORINGS

The FS70244 is an AS568-244 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring measuring an inside diameter of 4.234 in (107.54 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.512 in (114.6 mm). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Fluorosilicone (FVMQ) is widely chosen for silicone's low-temperature flexibility combined with fuel resistance and the standard choice for static aerospace fuel system seals. The compound resists chlorinated solvents, 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 aviation fuel systems, aerospace and defense, and high-altitude equipment.

Order part number FS70244, sold individually. Unit weight is approximately 4.9312 g and nominal inside diameter is listed as 4 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.