*568-148 FLUOROSILICONE 70 DURO ORING

APG stocks the FS70148, an AS568-148 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring built to an inside diameter of 2.737 in (69.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.943 in (74.75 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists petroleum oils, chlorinated solvents, and aromatic fuels and jet fuel. Fluorosilicone (FVMQ) is widely chosen for the standard choice for static aerospace fuel system seals and silicone's low-temperature flexibility combined with fuel resistance. Published continuous service range is -80°F (-62.2°C) to 350°F (176.7°C). Exposure to brake fluids or high-temperature dynamic service will shorten service life.

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

This item is sold individually under part number FS70148. Nominal inside diameter is listed as 2 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.