FSIL FS50BU00 O-Ring, Size: -020
Material: FSIL FS50BU00 O-Ring
Size: AS568 -020 O-Ring
Part Number: FS50BU00-OR-020
FS50BU00
Fluorosilicone (FVMQ, FSIL)
50
Shore A
General Purpose Material
Color: Blue
Detailed Description
FS50BU00-OR-020 is a Blue, 50 Shore A, Fluorosilicone (FVMQ, FSIL) O-Ring. FS50BU00 is manufactured with the following features & specifications: General Purpose Material. FS50BU00-OR-020 is AS568 size -020 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 21.95mm (Inside Diameter (ID)).
Material: FSIL FS50BU00 O-Ring
Size: AS568 -020, 1.78mm CS X 21.95mm ID (0.070" CS X 0.864" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | FS50BU00 |
| Material | Fluorosilicone (FVMQ, FSIL) |
| Color | Blue |
| Durometer | 50 Shore A |
| High Temperature | 175 °C / 347 °F |
| Low Temperature | -75 °C / -103 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -020 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 21.95 mm / 0.864 in |
Canyon’s FS50BU00 is a 50 Shore A blue Fluorosilicone compound engineered as a general-purpose, low-hardness sealing material for applications that demand flexibility, fuel resistance, and environmental durability. Its moderate durometer provides a balance between conformability and mechanical strength, delivering good compression set resistance and elastic recovery under low to moderate sealing loads. With a service temperature range of -73°C to 177°C (-100°F to 350°F), FS50BU00 performs reliably in extreme cold as well as elevated temperatures. The fluorosilicone chemistry offers excellent resistance to fuels, oils, and a broad range of chemicals, along with strong resistance to aging, weathering, and ultraviolet exposure.
FS50BU00 meets ASTM D2000 M2FK506 requirements and MIL-R-25988 Class I, Type II, making it suitable for aerospace, automotive, and industrial sealing applications where fuel compatibility and low-temperature flexibility are critical. It is commonly used for O-rings and gaskets in environments exposed to aviation fuels, automotive fuels, and oil-rich atmospheres where standard silicone materials are insufficient. This material is frequently cross-referenced as an alternative to Parker® LM151-50 and 11645 for comparable fluorosilicone sealing applications. Canyon Components also offers additional fluorosilicone compounds in multiple durometers and colors to support specific performance and compliance needs.
Common relevant keywords:
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