
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)
1/4"

FSIL FS80BU00 Full Face Gasket, Size: 150#-4"-FF-1/4"
Material: FSIL FS80BU00 Full Face Gasket
Size: 150#-4"-FF-1/4" Full Face Gasket
Part Number: FS80BU00-150#-4"-FF-1/4"
Color: Blue
Detailed Description
FS80BU00-150#-4"-FF-1/4" is a Blue, 80 Shore A, Fluorosilicone (FVMQ, FSIL) Full Face Gasket. It is a 80 durometer Fluorosilicone (FVMQ, FSIL). [ FS80BU00-150#-4"-FF-1/4" is a size 4, 150#-FF ASME Full Face Gasket. Material: 80 Durometer FSIL FS80BU00 Full Face Gasket Size: 150#-4"-FF-1/4", 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 1/4" Thickness

| Technical Specification | Value |
|---|---|
| Compound Number | FS80BU00 |
| Material | Fluorosilicone (FVMQ, FSIL) |
| Color | Blue |
| Durometer | 80 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-1/4" |
| 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 | 1/4" |
Canyon’s FS80BU00 is an 80 Shore A blue Fluorosilicone compound engineered for fuel-resistant sealing applications that require higher hardness, mechanical stability, and wide temperature capability. Manufactured in compliance with MIL-DTL-25988 and AMS-R-25988, MIL-R-25988 Class 1 Type 1 and Type 2 Grade 80, it delivers dependable compression set resistance and elastic recovery under sustained load. With a service temperature range of -73°C to 177°C (-100°F to 350°F), FS80BU00 maintains sealing integrity in extreme cold and elevated temperature environments. The fluorosilicone chemistry provides excellent resistance to fuels, oils, aging, weathering, and ultraviolet exposure where standard silicone materials are insufficient.
FS80BU00 is commonly used in O-rings and gaskets for aerospace, defense, automotive, and industrial systems exposed to aviation fuels, automotive fuels, and chemically aggressive atmospheres. Its higher durometer supports improved extrusion resistance and dimensional stability in static and moderate dynamic sealing conditions. This compound offers a robust fluorosilicone solution for designs that demand fuel compatibility, environmental durability, and military specification alignment without QPL restrictions.
Common relevant keywords:
fluorosilicone fuel resistant seals, 80 Shore A fluorosilicone O-rings, MIL-DTL-25988 fluorosilicone rubber, AMS-R-25988 compliant elastomer, high hardness fluorosilicone gaskets, aviation fuel compatible seals, low temperature fluorosilicone material, oil resistant silicone O-rings, aerospace fluorosilicone sealing compounds, blue fluorosilicone gaskets, industrial fuel system seals, Datasheet, TDS, Test Report, MTR, MSDS, SDS


