568-161 FLUOROSILICONE 70 DURO ORINGS

Part number FS70161 is an AS568-161 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring measuring an inside diameter of 5.487 in (139.37 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 5.693 in (144.6 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Fluorosilicone (FVMQ) is specified here for good compression set resistance in static duty and silicone's low-temperature flexibility combined with fuel resistance. The compound resists ozone and weathering, aromatic fuels and jet fuel, and extreme cold. Rated temperature range runs from -80°F (-62.2°C) to 350°F (176.7°C) in continuous service.

Maintenance and OEM teams specify it across military ground vehicles, high-altitude equipment, and aviation fuel systems.

Stocked as FS70161 and sold individually. Unit weight is approximately 3.7344 g and nominal inside diameter is listed as 5 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.