568-275 FLUOROSILICONE 70 DURO ORINGS

Ordered as FS70275, this is an AS568-275 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring built to an inside diameter of 10.484 in (266.29 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.762 in (273.35 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Fluorosilicone (FVMQ) is specified here for good compression set resistance in static duty and standard choice for static aerospace fuel system seals. The compound resists extreme cold, aromatic fuels and jet fuel, and chlorinated solvents. Service temperature is rated from -80°F (-62.2°C) through 350°F (176.7°C). Applications involving brake fluids or high-temperature dynamic service call for a different compound.

You will find this material specified across military ground vehicles, aerospace and defense, and high-altitude equipment.

This item is sold individually under part number FS70275. Unit weight is approximately 11.984 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.