Ordered as FS70327, this is an AS568-327 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring measuring an inside diameter of 1.725 in (43.82 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.145 in (54.48 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Fluorosilicone (FVMQ) is specified here for standard choice for static aerospace fuel system seals and silicone's low-temperature flexibility combined with fuel resistance. This material stands up to petroleum oils, chlorinated solvents, and extreme cold. Service temperature is rated from -80°F (-62.2°C) through 350°F (176.7°C). It is not the right choice where brake fluids or ketones are present.
Maintenance and OEM teams specify it across military ground vehicles, aerospace and defense, and high-altitude equipment.
This item is sold individually under part number FS70327. Unit weight is approximately 5.4588 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description *568-327 FLUOROSILICONE 70 DURO ORINGS
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 1.725 inch (43.82 mm)
Actual Outside Diameter 2.145 inch (54.48 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium