APG stocks the FS70137, an AS568-137 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring supplied with an inside diameter of 2.05 in (52.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.256 in (57.3 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Fluorosilicone (FVMQ) is known for good compression set resistance in static duty and a very wide service temperature range. It resists ozone and weathering, chlorinated solvents, and aromatic fuels and jet fuel. Rated temperature range runs from -80°F (-62.2°C) to 350°F (176.7°C) in continuous service. Applications involving ketones or brake fluids call for a different compound.
Maintenance and OEM teams specify it across military ground vehicles, aerospace and defense, and aviation fuel systems.
Reference part number FS70137 when ordering; the item is sold individually. Unit weight is approximately 1.4273 g and nominal inside diameter is listed as 2 1/16 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 568-137 FLUOROSILICONE 70 DURO ORINGS
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 2.05 inch (52.07 mm)
Actual Outside Diameter 2.256 inch (57.3 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium