FS70338 is an AS568-338 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring with an inside diameter of 3.1 in (78.74 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.52 in (89.41 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
This material stands up to petroleum oils, ozone and weathering, and extreme cold. Fluorosilicone (FVMQ) is specified for a very wide service temperature range and silicone's low-temperature flexibility combined with fuel resistance. Continuous operating temperature is published at -80°F (-62.2°C) to 350°F (176.7°C).
Typical settings include military ground vehicles, high-altitude equipment, and aviation fuel systems.
Order part number FS70338, sold individually. Nominal inside diameter is listed as 3 1/8 inch. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description *568-338 FLUOROSILICONE 70 DURO ORINGS
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 3.1 inch (78.74 mm)
Actual_OD 3.52 inch (89.41 mm)
ProductCode Description O-Rings - Bulk - Premium