This o-ring is supplied in AS568-390 blue Fluorosilicone (FVMQ) 70 Shore A supplied with an inside diameter of 20.953 in (532.21 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 21.373 in (542.87 mm), catalogued under part number FS70390. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Fluorosilicone (FVMQ) offers the standard choice for static aerospace fuel system seals, excellent ozone and UV stability. The material holds up against aromatic fuels and jet fuel, ozone and weathering, and extreme cold. Continuous operating temperature is published at -80°F (-62.2°C) to 350°F (176.7°C). Applications involving high-temperature dynamic service or ketones call for a different compound.
Common environments for this compound include aerospace and defense, military ground vehicles, and high-altitude equipment.
FS70390 ships individually. Unit weight is approximately 58.624 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description *568-390 FLUOROSILICONE 70 DURO ORINGS
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 20.953 inch (532.21 mm)
Actual_OD 21.373 inch (542.87 mm)
ProductCode Description O-Rings - Bulk - Premium