568-120 FLUOROSILICONE 70 DURO ORINGS

Part number FS70120 is an AS568-120 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring with an inside diameter of 0.987 in (25.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.193 in (30.3 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to aromatic fuels and jet fuel, petroleum oils, and extreme cold. That behavior comes from the compound itself: Fluorosilicone (FVMQ) offers a very wide service temperature range and silicone's low-temperature flexibility combined with fuel resistance. Continuous operating temperature is published at -80°F (-62.2°C) to 350°F (176.7°C). Exposure to hydrazine or ketones will shorten service life.

It sees regular use in military ground vehicles, high-altitude equipment, and aviation fuel systems.

Reference part number FS70120 when ordering; the item is sold individually. Unit weight is approximately 0.7042 g and nominal inside diameter is listed as 1 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.