568-021 FLUOROSILICONE 70 DURO ORINGS

This o-ring is supplied in AS568-021 blue Fluorosilicone (FVMQ) 70 Shore A built to an inside diameter of 0.926 in (23.52 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.066 in (27.08 mm), catalogued under part number FS70021. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Fluorosilicone (FVMQ) is valued for silicone's low-temperature flexibility combined with fuel resistance and a very wide service temperature range. Expect good resistance to extreme cold, chlorinated solvents, and petroleum oils. Published continuous service range is -80°F (-62.2°C) to 350°F (176.7°C). It is not the right choice where hydrazine or ketones are present.

Typical settings include aviation fuel systems, aerospace and defense, and military ground vehicles.

Order part number FS70021, sold individually. Unit weight is approximately 0.2919 g. 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.