568-241 FLUOROSILICONE 70 DURO ORINGS

This o-ring is supplied in AS568-241 blue Fluorosilicone (FVMQ) 70 Shore A with an inside diameter of 3.859 in (98.02 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.137 in (105.08 mm), catalogued under part number FS70241. It compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to aromatic fuels and jet fuel, ozone and weathering, and chlorinated solvents. That behavior comes from the compound itself: Fluorosilicone (FVMQ) is widely chosen for good compression set resistance in static duty, excellent ozone and UV stability. Published continuous service range is -80°F (-62.2°C) to 350°F (176.7°C). Applications involving hydrazine or ketones call for a different compound.

Maintenance and OEM teams specify it across high-altitude equipment, military ground vehicles, and aerospace and defense.

Reference part number FS70241 when ordering; the item is sold individually. Unit weight is approximately 4.5488 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.