568-368 FLUOROSILICONE 70 DURO ORINGS

APG stocks the FS70368, an AS568-368 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring measuring an inside diameter of 7.725 in (196.22 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.145 in (206.88 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Fluorosilicone (FVMQ) offers silicone's low-temperature flexibility combined with fuel resistance and the standard choice for static aerospace fuel system seals. The material holds up against chlorinated solvents, petroleum oils, and ozone and weathering. Continuous operating temperature is published at -80°F (-62.2°C) to 350°F (176.7°C). Exposure to ketones or high-temperature dynamic service will shorten service life.

Common environments for this compound include aerospace and defense, aviation fuel systems, and high-altitude equipment.

This item is sold individually under part number FS70368. Unit weight is approximately 20.355 g and nominal inside diameter is listed as 7 3/4 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.