Image shown is representative and may differ from the actual product in size, proportions, and color shade
4.500 in
(114.30 mm)
9.000 in
(228.60 mm)
8
0.750 in
(19.05 mm)
7.500 in
(190.50 mm)
1/2"
FSIL FS50BU00 Full Face Gasket, Size: 150#-4"-FF-1/2"
Material: FSIL FS50BU00 Full Face Gasket
Size: 150#-4"-FF-1/2" Full Face Gasket
Part Number: FS50BU00-150#-4"-FF-1/2"
Color: Blue
Detailed Description
FS50BU00-150#-4"-FF-1/2" is a Blue, 50 Shore A, Fluorosilicone (FVMQ, FSIL) Full Face Gasket. It is a 50 durometer Fluorosilicone (FVMQ, FSIL). [FS50BU00 is manufactured with the following features & specifications: General Purpose Material. FS50BU00-150#-4"-FF-1/2" is a size 4, 150#-FF ASME Full Face Gasket. Material: 50 Durometer FSIL FS50BU00 Full Face Gasket Size: 150#-4"-FF-1/2", 4 Pipe Size X 114.3mm ID X 228.6mm OD X 8 Bolt Qty X 19.050mm Bolt Dia. X 190.500mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | FS50BU00 |
| Material | Fluorosilicone (FVMQ, FSIL) |
| Color | Blue |
| Durometer | 50 Shore A Hardness |
| High Temperature | 175 °C / 347 °F |
| Low Temperature | -75 °C / -103 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 150#-4"-FF-1/2" |
| Pipe Size | 4 |
| ID | 114.30 mm / 4.500 in |
| OD | 228.60 mm / 9.000 in |
| Bolt Qty | 8 |
| Bolt Dia. | 19.05 mm / 0.750 in |
| Bolt Circle | 190.50 mm / 7.500 in |
| Thickness | 1/2" |
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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