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BUP
Design
    • Provides exceptional extrusion resistance to a paired oring or seal to increase pressure handling capabilities.
    • High abrasion resistance makes it suitable in contaminated fluids.
    • Can be used as a backup to a hydraulic seal or an oring.
Material
    • 95A Polyurethane.
Application
    • Suitable for static and dynamic applications.
    • Suitable for high pressure and heavy duty applications where additional resistance to extrusion is required.
Fluids
    • Hydraulic fluids, petroleum fuels and oils

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Product Code
Description
Availability
Qty
BUP-248
Backup Polyurethane BS248 - 4.750 X 5.000 X 0.040"
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BUP-248 - Backup Polyurethane BS248 - 4.750 X 5.000 X 0.040"
Product Information
Product CodeBUP-248
DescriptionBackup Polyurethane BS248 - 4.750 X 5.000 X 0.040"
ProfileBUP
Internal Diameter4.750
Outer Diameter5.000
Seal Height0.040
Max. Temp C100
Alt. Part No.R19248
BUP-351
Backup Polyurethane BS351 - 4.750 X 5.125 X 0.055"
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BUP-351 - Backup Polyurethane BS351 - 4.750 X 5.125 X 0.055"
Product Information
Product CodeBUP-351
DescriptionBackup Polyurethane BS351 - 4.750 X 5.125 X 0.055"
ProfileBUP
Internal Diameter4.750
Outer Diameter5.125
Seal Height0.055
Max. Temp C100
Alt. Part No.R19351
BUP-427
Backup Polyurethane BS427 - 4.750 X 5.250 X 0.085"
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BUP-427 - Backup Polyurethane BS427 - 4.750 X 5.250 X 0.085"
Product Information
Product CodeBUP-427
DescriptionBackup Polyurethane BS427 - 4.750 X 5.250 X 0.085"
ProfileBUP
Internal Diameter4.750
Outer Diameter5.250
Seal Height0.085
Max. Temp C100
Alt. Part No.R19427
BUP-249
Backup Polyurethane BS249 - 4.875 X 5.125 X 0.040"
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BUP-249 - Backup Polyurethane BS249 - 4.875 X 5.125 X 0.040"
Product Information
Product CodeBUP-249
DescriptionBackup Polyurethane BS249 - 4.875 X 5.125 X 0.040"
ProfileBUP
Internal Diameter4.875
Outer Diameter5.125
Seal Height0.040
Max. Temp C100
Alt. Part No.R19249
BUP-352
Backup Polyurethane BS352 - 4.875 X 5.250 X 0.055"
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BUP-352 - Backup Polyurethane BS352 - 4.875 X 5.250 X 0.055"
Product Information
Product CodeBUP-352
DescriptionBackup Polyurethane BS352 - 4.875 X 5.250 X 0.055"
ProfileBUP
Internal Diameter4.875
Outer Diameter5.250
Seal Height0.055
Max. Temp C100
Alt. Part No.R19352
BUP-428
Backup Polyurethane BS428 - 4.875 X 5.375 X 0.085"
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BUP-428 - Backup Polyurethane BS428 - 4.875 X 5.375 X 0.085"
Product Information
Product CodeBUP-428
DescriptionBackup Polyurethane BS428 - 4.875 X 5.375 X 0.085"
ProfileBUP
Internal Diameter4.875
Outer Diameter5.375
Seal Height0.085
Max. Temp C100
Alt. Part No.R19428
BUP-049
Backup Polyurethane BS049 - 5.000 X 5.125 X 0.040"
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BUP-049 - Backup Polyurethane BS049 - 5.000 X 5.125 X 0.040"
Product Information
Product CodeBUP-049
DescriptionBackup Polyurethane BS049 - 5.000 X 5.125 X 0.040"
ProfileBUP
Internal Diameter5.000
Outer Diameter5.125
Seal Height0.040
Max. Temp C100
Alt. Part No.R19049
BUP-159
Backup Polyurethane BS159 - 5.000 X 5.188 X 0.040"
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BUP-159 - Backup Polyurethane BS159 - 5.000 X 5.188 X 0.040"
Product Information
Product CodeBUP-159
DescriptionBackup Polyurethane BS159 - 5.000 X 5.188 X 0.040"
ProfileBUP
Internal Diameter5.000
Outer Diameter5.188
Seal Height0.040
Max. Temp C100
Alt. Part No.R19159
BUP-250
Backup Polyurethane BS250 - 5.000 X 5.250 X 0.040"
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BUP-250 - Backup Polyurethane BS250 - 5.000 X 5.250 X 0.040"
Product Information
Product CodeBUP-250
DescriptionBackup Polyurethane BS250 - 5.000 X 5.250 X 0.040"
ProfileBUP
Internal Diameter5.000
Outer Diameter5.250
Seal Height0.040
Max. Temp C100
Alt. Part No.R19250
BUP-353
Backup Polyurethane BS353 - 5.000 X 5.375 X 0.055"
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BUP-353 - Backup Polyurethane BS353 - 5.000 X 5.375 X 0.055"
Product Information
Product CodeBUP-353
DescriptionBackup Polyurethane BS353 - 5.000 X 5.375 X 0.055"
ProfileBUP
Internal Diameter5.000
Outer Diameter5.375
Seal Height0.055
Max. Temp C100
Alt. Part No.R19353
BUP-429
Backup Polyurethane BS429 - 5.000 X 5.500 X 0.085"
0
BUP-429 - Backup Polyurethane BS429 - 5.000 X 5.500 X 0.085"
Product Information
Product CodeBUP-429
DescriptionBackup Polyurethane BS429 - 5.000 X 5.500 X 0.085"
ProfileBUP
Internal Diameter5.000
Outer Diameter5.500
Seal Height0.085
Max. Temp C100
Alt. Part No.R19429
BUP-251
Backup Polyurethane BS251 - 5.125 X 5.375 X 0.040"
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BUP-251 - Backup Polyurethane BS251 - 5.125 X 5.375 X 0.040"
Product Information
Product CodeBUP-251
DescriptionBackup Polyurethane BS251 - 5.125 X 5.375 X 0.040"
ProfileBUP
Internal Diameter5.125
Outer Diameter5.375
Seal Height0.040
Max. Temp C100
Alt. Part No.R19251
BUP-354
Backup Polyurethane BS354 - 5.125 X 5.500 X 0.055"
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BUP-354 - Backup Polyurethane BS354 - 5.125 X 5.500 X 0.055"
Product Information
Product CodeBUP-354
DescriptionBackup Polyurethane BS354 - 5.125 X 5.500 X 0.055"
ProfileBUP
Internal Diameter5.125
Outer Diameter5.500
Seal Height0.055
Max. Temp C100
Alt. Part No.R19354
BUP-430
Backup Polyurethane BS430 - 5.125 X 5.625 X 0.085"
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BUP-430 - Backup Polyurethane BS430 - 5.125 X 5.625 X 0.085"
Product Information
Product CodeBUP-430
DescriptionBackup Polyurethane BS430 - 5.125 X 5.625 X 0.085"
ProfileBUP
Internal Diameter5.125
Outer Diameter5.625
Seal Height0.085
Max. Temp C100
Alt. Part No.R19430
BUP-050
Backup Polyurethane BS050 - 5.250 X 5.375 X 0.040"
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BUP-050 - Backup Polyurethane BS050 - 5.250 X 5.375 X 0.040"
Product Information
Product CodeBUP-050
DescriptionBackup Polyurethane BS050 - 5.250 X 5.375 X 0.040"
ProfileBUP
Internal Diameter5.250
Outer Diameter5.375
Seal Height0.040
Max. Temp C100
Alt. Part No.R19050
BUP-160
Backup Polyurethane BS160 - 5.250 X 5.438 X 0.040"
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BUP-160 - Backup Polyurethane BS160 - 5.250 X 5.438 X 0.040"
Product Information
Product CodeBUP-160
DescriptionBackup Polyurethane BS160 - 5.250 X 5.438 X 0.040"
ProfileBUP
Internal Diameter5.250
Outer Diameter5.438
Seal Height0.040
Max. Temp C100
Alt. Part No.R19160
BUP-252
Backup Polyurethane BS252 - 5.250 X 5.500 X 0.040"
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BUP-252 - Backup Polyurethane BS252 - 5.250 X 5.500 X 0.040"
Product Information
Product CodeBUP-252
DescriptionBackup Polyurethane BS252 - 5.250 X 5.500 X 0.040"
ProfileBUP
Internal Diameter5.250
Outer Diameter5.500
Seal Height0.040
Max. Temp C100
Alt. Part No.R19252
BUP-355
Backup Polyurethane BS355 - 5.250 X 5.625 X 0.055"
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BUP-355 - Backup Polyurethane BS355 - 5.250 X 5.625 X 0.055"
Product Information
Product CodeBUP-355
DescriptionBackup Polyurethane BS355 - 5.250 X 5.625 X 0.055"
ProfileBUP
Internal Diameter5.250
Outer Diameter5.625
Seal Height0.055
Max. Temp C100
Alt. Part No.R19355
BUP-431
Backup Polyurethane BS431 - 5.250 X 5.750 X 0.085"
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BUP-431 - Backup Polyurethane BS431 - 5.250 X 5.750 X 0.085"
Product Information
Product CodeBUP-431
DescriptionBackup Polyurethane BS431 - 5.250 X 5.750 X 0.085"
ProfileBUP
Internal Diameter5.250
Outer Diameter5.750
Seal Height0.085
Max. Temp C100
Alt. Part No.R19431
BUP-253
Backup Polyurethane BS253 - 5.375 X 5.625 X 0.040"
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BUP-253 - Backup Polyurethane BS253 - 5.375 X 5.625 X 0.040"
Product Information
Product CodeBUP-253
DescriptionBackup Polyurethane BS253 - 5.375 X 5.625 X 0.040"
ProfileBUP
Internal Diameter5.375
Outer Diameter5.625
Seal Height0.040
Max. Temp C100
Alt. Part No.R19253
BUP-356
Backup Polyurethane BS356 - 5.375 X 5.750 X 0.055"
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BUP-356 - Backup Polyurethane BS356 - 5.375 X 5.750 X 0.055"
Product Information
Product CodeBUP-356
DescriptionBackup Polyurethane BS356 - 5.375 X 5.750 X 0.055"
ProfileBUP
Internal Diameter5.375
Outer Diameter5.750
Seal Height0.055
Max. Temp C100
Alt. Part No.R19356
BUP-432
Backup Polyurethane BS432 - 5.375 X 5.875 X 0.085"
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BUP-432 - Backup Polyurethane BS432 - 5.375 X 5.875 X 0.085"
Product Information
Product CodeBUP-432
DescriptionBackup Polyurethane BS432 - 5.375 X 5.875 X 0.085"
ProfileBUP
Internal Diameter5.375
Outer Diameter5.875
Seal Height0.085
Max. Temp C100
Alt. Part No.R19432
BUP-161
Backup Polyurethane BS161 - 5.500 X 5.688 X 0.040"
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BUP-161 - Backup Polyurethane BS161 - 5.500 X 5.688 X 0.040"
Product Information
Product CodeBUP-161
DescriptionBackup Polyurethane BS161 - 5.500 X 5.688 X 0.040"
ProfileBUP
Internal Diameter5.500
Outer Diameter5.688
Seal Height0.040
Max. Temp C100
Alt. Part No.R19161
BUP-254
Backup Polyurethane BS254 - 5.500 X 5.750 X 0.040"
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BUP-254 - Backup Polyurethane BS254 - 5.500 X 5.750 X 0.040"
Product Information
Product CodeBUP-254
DescriptionBackup Polyurethane BS254 - 5.500 X 5.750 X 0.040"
ProfileBUP
Internal Diameter5.500
Outer Diameter5.750
Seal Height0.040
Max. Temp C100
Alt. Part No.R19254
 
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