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FS75BU50-OR-7X82
CS

0.276 in

(7.00 mm)

ID

3.228 in

(82.00 mm)

ORing cut reference

FSIL FS75BU50 O-Ring, Size: 7X82

Material: FSIL FS75BU50 O-Ring

Size: Metric 7X82 O-Ring

Part Number: FS75BU50-OR-7X82

FS75BU50

Fluorosilicone (FVMQ, FSIL)

75

Shore A

MIL-DTL-25988

AMS-R-25988

MIL-R-25988 CL 3 TY 1&2

Color: Blue

Detailed Description

FS75BU50-OR-7X82 is a Blue, 75 Shore A, Fluorosilicone (FVMQ, FSIL) O-Ring. FS75BU50-OR-7X82 is Metric size 7X82 O-Ring also referred to as 7mm (Cross Sectional Diameter (CS)) x 82mm (Inside Diameter (ID)).


Material: FSIL FS75BU50 O-Ring


Size: Metric 7X82, 7.00mm CS X 82.00mm ID (0.276" CS X 3.228" ID)

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Technical SpecificationValue
Compound NumberFS75BU50
MaterialFluorosilicone (FVMQ, FSIL)
ColorBlue
Durometer75 Shore A
High Temperature175 °C / 347 °F
Low Temperature-70 °C / -94 °F
Geometry Specifications
Cross Sectional GeometryO-Ring
Size StandardMetric
Size7X82
Cross Section (CS)7.00 mm / 0.276 in
Inside Diameter (ID)82.00 mm / 3.228 in
ORing cut reference

Canyon’s FS75BU50 is a 75 Shore A blue Fluorosilicone compound engineered for fuel-resistant sealing applications that require higher hardness, environmental durability, and military specification compliance. Manufactured in accordance with MIL-DTL-25988 and AMS-R-25988, MIL-R-25988 Class 3 Type 1 and Type 2, it provides dependable compression set resistance and elastic recovery while offering excellent resistance to fuels, oils, aging, weathering, and ultraviolet exposure. With a service temperature range of -73°C to 177°C (-100°F to 350°F), FS75BU50 maintains sealing integrity across extreme cold and elevated temperature conditions. Its higher durometer supports improved extrusion resistance and dimensional stability in both static and moderate dynamic sealing environments.

 

FS75BU50 is commonly used for O-rings and gaskets in aerospace, defense, automotive, and industrial systems exposed to aviation fuels, automotive fuels, and chemically aggressive atmospheres. The fluorosilicone chemistry makes it well suited for applications where standard silicone materials lack fuel resistance, while the MIL-compliant formulation supports use in regulated programs without QPL restrictions. This compound provides a balanced solution for designers seeking fuel compatibility, temperature capability, and military specification alignment.

 

Common relevant keywords:
fluorosilicone fuel seals, 75 Shore A fluorosilicone O-rings, MIL-DTL-25988 fluorosilicone rubber, AMS-R-25988 compliant elastomer, aviation fuel resistant gaskets, oil resistant silicone seals, low temperature fluorosilicone material, aerospace fluorosilicone O-rings, blue fluorosilicone sealing compound, chemical resistant silicone elastomers, defense grade fluorosilicone seals, Datasheet, TDS, Test Report, MTR, MSDS, SDS