568-238 FLUOROSILICONE 70 DURO ORINGS

Ordered as FS70238, this is an AS568-238 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring with an inside diameter of 3.484 in (88.49 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.762 in (95.55 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Fluorosilicone (FVMQ) is specified for excellent ozone and UV stability, the standard choice for static aerospace fuel system seals. The compound resists ozone and weathering, extreme cold, and chlorinated solvents. The material carries a published service range of -80°F (-62.2°C) to 350°F (176.7°C).

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

Stocked as FS70238 and sold individually. Unit weight is approximately 4.1229 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.