568-329 FLUOROSILICONE 70 DURO ORINGS

Part number FS70329 is an AS568-329 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring built to an inside diameter of 1.975 in (50.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.395 in (60.83 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists petroleum oils, ozone and weathering, and chlorinated solvents. Fluorosilicone (FVMQ) delivers good compression set resistance in static duty and a very wide service temperature range. Continuous operating temperature is published at -80°F (-62.2°C) to 350°F (176.7°C). It is not the right choice where ketones or hydrazine are present.

You will find this material specified across aviation fuel systems, military ground vehicles, and high-altitude equipment.

Stocked as FS70329 and sold individually. Unit weight is approximately 5.644 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.