568-118 FLUOROSILICONE 70 DURO ORINGS

This o-ring is supplied in AS568-118 blue Fluorosilicone (FVMQ) 70 Shore A supplied with an inside diameter of 0.862 in (21.89 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.068 in (27.13 mm), catalogued under part number FS70118. It creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists chlorinated solvents, ozone and weathering, and aromatic fuels and jet fuel. That behavior comes from the compound itself: Fluorosilicone (FVMQ) is known for a very wide service temperature range and good compression set resistance in static duty. Service temperature is rated from -80°F (-62.2°C) through 350°F (176.7°C). Exposure to hydrazine or high-temperature dynamic service will shorten service life.

It sees regular use in aerospace and defense, high-altitude equipment, and aviation fuel systems.

Stocked as FS70118 and sold individually. Unit weight is approximately 0.6656 g and nominal inside diameter is listed as 7/8 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.