568-268 FLUOROSILICONE 70 DURO ORINGS

APG stocks the FS70268, an AS568-268 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring with an inside diameter of 8.484 in (215.49 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.762 in (222.55 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to chlorinated solvents, aromatic fuels and jet fuel, and extreme cold. Fluorosilicone (FVMQ) is specified for a very wide service temperature range, excellent ozone and UV stability. The material carries a published service range of -80°F (-62.2°C) to 350°F (176.7°C). It is not the right choice where ketones or brake fluids are present.

Maintenance and OEM teams specify it across aerospace and defense, high-altitude equipment, and aviation fuel systems.

Reference part number FS70268 when ordering; the item is sold individually. Unit weight is approximately 9.6688 g and nominal inside diameter is listed as 8 1/2 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.