Ordered as FS70330, this is an AS568-330 blue Fluorosilicone (FVMQ) 70 Shore A O-Ring built to an inside diameter of 2.1 in (53.34 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.52 in (64.01 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Fluorosilicone (FVMQ) delivers a very wide service temperature range and the standard choice for static aerospace fuel system seals. Expect good resistance to ozone and weathering, extreme cold, and petroleum oils. Service temperature is rated from -80°F (-62.2°C) through 350°F (176.7°C). It should not be specified for service in hydrazine or high-temperature dynamic service.
Maintenance and OEM teams specify it across aviation fuel systems, high-altitude equipment, and military ground vehicles.
Order part number FS70330, sold individually. Unit weight is approximately 6.4933 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 568-330 FLUOROSILICONE 70 DURO ORINGS
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 2.1 inch (53.34 mm)
Actual_OD 2.52 inch (64.01 mm)
ProductCode Description O-Rings - Bulk - Premium