You have no items in your shopping cart.

*568-338 FLUOROSILICONE 70 DURO ORINGS

Fluorosilicone O-Ring, 3.1 in ID x 0.21 CS, 70A, Blue, -80 to 350°F

Status
Available
Est. Ship Date
24 Oct 2026
Material
Fluorosilicone
Dash Size
338
Durometer
70 Shore A
Cross Section Type
Round
Color
Blue
Minimum Temperature
-80°F (-62.2°C)
Maximum Temperature
350°F (177°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
3 1/8 inch
Nominal Outside Diameter
3 1/2 inch
Unit of Measure
EA
SKU:
FS70338
Please login to see price and add to cart

Product Specification

-
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.
Item
FS70338
Description
*568-338 FLUOROSILICONE 70 DURO ORINGS
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
3.1 inch (78.74 mm)
Actual Outside Diameter
3.52 inch (89.41 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6006
Product Category
O-Rings - Bulk - Premium