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BUT
Design
    • Provides exceptional extrusion resistance to a paired oring to increase pressure handling capabilities.
    • Ideal in applications where low friction is a priority.
    • Can be used as a backup to a hydraulic seal or an oring.
    • PTFE will 'cold-flow' into an extrusion gap to provide superior extrusion resistance to Nitrile.
Material
    • PTFE
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
BUTM-P004
Backup PTFE P004 - 4.00 X 7.00 X 1.25mm
19
BUTM-P004 - Backup PTFE P004 - 4.00 X 7.00 X 1.25mm
Product Information
Product CodeBUTM-P004
DescriptionBackup PTFE P004 - 4.00 X 7.00 X 1.25mm
ProfileBUT
Internal Diameter4.00
Outer Diameter7.00
Seal Height1.25
Max. Temp C260
BUT-155
Backup PTFE BS155 - 4.005 X 4.181 X 0.05"
0
BUT-155 - Backup PTFE BS155 - 4.005 X 4.181 X 0.05"
Product Information
Product CodeBUT-155
DescriptionBackup PTFE BS155 - 4.005 X 4.181 X 0.05"
ProfileBUT
Internal Diameter4.005
Outer Diameter4.181
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS155
BUT-242
Backup PTFE BS242 - 4.005 X 4.243 X 0.049"
102
BUT-242 - Backup PTFE BS242 - 4.005 X 4.243 X 0.049"
Product Information
Product CodeBUT-242
DescriptionBackup PTFE BS242 - 4.005 X 4.243 X 0.049"
ProfileBUT
Internal Diameter4.005
Outer Diameter4.243
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS242
BUT-045
Backup PTFE BS045 - 4.023 X 4.129 X 0.049"
50
BUT-045 - Backup PTFE BS045 - 4.023 X 4.129 X 0.049"
Product Information
Product CodeBUT-045
DescriptionBackup PTFE BS045 - 4.023 X 4.129 X 0.049"
ProfileBUT
Internal Diameter4.023
Outer Diameter4.129
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS045
BUT-345
Backup PTFE BS345 - 4.028 X 4.394 X 0.07"
20
BUT-345 - Backup PTFE BS345 - 4.028 X 4.394 X 0.07"
Product Information
Product CodeBUT-345
DescriptionBackup PTFE BS345 - 4.028 X 4.394 X 0.07"
ProfileBUT
Internal Diameter4.028
Outer Diameter4.394
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS345
BUT-243
Backup PTFE BS243 - 4.13 X 4.368 X 0.049"
44
BUT-243 - Backup PTFE BS243 - 4.13 X 4.368 X 0.049"
Product Information
Product CodeBUT-243
DescriptionBackup PTFE BS243 - 4.13 X 4.368 X 0.049"
ProfileBUT
Internal Diameter4.130
Outer Diameter4.368
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS243
BUT-346
Backup PTFE BS346 - 4.153 X 4.519 X 0.07"
19
BUT-346 - Backup PTFE BS346 - 4.153 X 4.519 X 0.07"
Product Information
Product CodeBUT-346
DescriptionBackup PTFE BS346 - 4.153 X 4.519 X 0.07"
ProfileBUT
Internal Diameter4.153
Outer Diameter4.519
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS346
BUT-156
Backup PTFE BS156 - 4.255 X 4.431 X 0.05"
9
BUT-156 - Backup PTFE BS156 - 4.255 X 4.431 X 0.05"
Product Information
Product CodeBUT-156
DescriptionBackup PTFE BS156 - 4.255 X 4.431 X 0.05"
ProfileBUT
Internal Diameter4.255
Outer Diameter4.431
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS156
BUT-244
Backup PTFE BS244 - 4.255 X 4.493 X 0.049"
50
BUT-244 - Backup PTFE BS244 - 4.255 X 4.493 X 0.049"
Product Information
Product CodeBUT-244
DescriptionBackup PTFE BS244 - 4.255 X 4.493 X 0.049"
ProfileBUT
Internal Diameter4.255
Outer Diameter4.493
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS244
BUT-046
Backup PTFE BS046 - 4.273 X 4.379 X 0.049"
0
BUT-046 - Backup PTFE BS046 - 4.273 X 4.379 X 0.049"
Product Information
Product CodeBUT-046
DescriptionBackup PTFE BS046 - 4.273 X 4.379 X 0.049"
ProfileBUT
Internal Diameter4.273
Outer Diameter4.379
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS046
BUT-347
Backup PTFE BS347 - 4.278 X 4.644 X 0.07"
5
BUT-347 - Backup PTFE BS347 - 4.278 X 4.644 X 0.07"
Product Information
Product CodeBUT-347
DescriptionBackup PTFE BS347 - 4.278 X 4.644 X 0.07"
ProfileBUT
Internal Diameter4.278
Outer Diameter4.644
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS347
BUT-245
Backup PTFE BS245 - 4.38 X 4.618 X 0.049"
5
BUT-245 - Backup PTFE BS245 - 4.38 X 4.618 X 0.049"
Product Information
Product CodeBUT-245
DescriptionBackup PTFE BS245 - 4.38 X 4.618 X 0.049"
ProfileBUT
Internal Diameter4.380
Outer Diameter4.618
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS245
BUT-348
Backup PTFE BS348 - 4.403 X 4.769 X 0.07"
42
BUT-348 - Backup PTFE BS348 - 4.403 X 4.769 X 0.07"
Product Information
Product CodeBUT-348
DescriptionBackup PTFE BS348 - 4.403 X 4.769 X 0.07"
ProfileBUT
Internal Diameter4.403
Outer Diameter4.769
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS348
BUT-157
Backup PTFE BS157 - 4.505 X 4.681 X 0.05"
36
BUT-157 - Backup PTFE BS157 - 4.505 X 4.681 X 0.05"
Product Information
Product CodeBUT-157
DescriptionBackup PTFE BS157 - 4.505 X 4.681 X 0.05"
ProfileBUT
Internal Diameter4.505
Outer Diameter4.681
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS157
BUT-246
Backup PTFE BS246 - 4.505 X 4.743 X 0.049"
628
BUT-246 - Backup PTFE BS246 - 4.505 X 4.743 X 0.049"
Product Information
Product CodeBUT-246
DescriptionBackup PTFE BS246 - 4.505 X 4.743 X 0.049"
ProfileBUT
Internal Diameter4.505
Outer Diameter4.743
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS246
BUT-047
Backup PTFE BS047 - 4.523 X 4.629 X 0.049"
0
BUT-047 - Backup PTFE BS047 - 4.523 X 4.629 X 0.049"
Product Information
Product CodeBUT-047
DescriptionBackup PTFE BS047 - 4.523 X 4.629 X 0.049"
ProfileBUT
Internal Diameter4.523
Outer Diameter4.629
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS047
BUT-349
Backup PTFE BS349 - 4.528 X 4.894 X 0.07"
168
BUT-349 - Backup PTFE BS349 - 4.528 X 4.894 X 0.07"
Product Information
Product CodeBUT-349
DescriptionBackup PTFE BS349 - 4.528 X 4.894 X 0.07"
ProfileBUT
Internal Diameter4.528
Outer Diameter4.894
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS349
BUT-425
Backup PTFE BS425 - 4.551 X 5.023 X 0.105"
13
BUT-425 - Backup PTFE BS425 - 4.551 X 5.023 X 0.105"
Product Information
Product CodeBUT-425
DescriptionBackup PTFE BS425 - 4.551 X 5.023 X 0.105"
ProfileBUT
Internal Diameter4.551
Outer Diameter5.023
Seal Height0.105
Max. Temp C260
Alt. Part No.RMS425
BUT-247
Backup PTFE BS247 - 4.63 X 4.868 X 0.049"
22
BUT-247 - Backup PTFE BS247 - 4.63 X 4.868 X 0.049"
Product Information
Product CodeBUT-247
DescriptionBackup PTFE BS247 - 4.63 X 4.868 X 0.049"
ProfileBUT
Internal Diameter4.630
Outer Diameter4.868
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS247
BUT-350
Backup PTFE BS350 - 4.653 X 5.019 X 0.07"
95
BUT-350 - Backup PTFE BS350 - 4.653 X 5.019 X 0.07"
Product Information
Product CodeBUT-350
DescriptionBackup PTFE BS350 - 4.653 X 5.019 X 0.07"
ProfileBUT
Internal Diameter4.653
Outer Diameter5.019
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS350
BUT-426
Backup PTFE BS426 - 4.676 X 5.148 X 0.105"
11
BUT-426 - Backup PTFE BS426 - 4.676 X 5.148 X 0.105"
Product Information
Product CodeBUT-426
DescriptionBackup PTFE BS426 - 4.676 X 5.148 X 0.105"
ProfileBUT
Internal Diameter4.676
Outer Diameter5.148
Seal Height0.105
Max. Temp C260
Alt. Part No.RMS426
BUT-158
Backup PTFE BS158 - 4.755 X 4.931 X 0.05"
81
BUT-158 - Backup PTFE BS158 - 4.755 X 4.931 X 0.05"
Product Information
Product CodeBUT-158
DescriptionBackup PTFE BS158 - 4.755 X 4.931 X 0.05"
ProfileBUT
Internal Diameter4.755
Outer Diameter4.931
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS158
BUT-248
Backup PTFE BS248 - 4.755 X 4.993 X 0.049"
14
BUT-248 - Backup PTFE BS248 - 4.755 X 4.993 X 0.049"
Product Information
Product CodeBUT-248
DescriptionBackup PTFE BS248 - 4.755 X 4.993 X 0.049"
ProfileBUT
Internal Diameter4.755
Outer Diameter4.993
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS248
BUT-048
Backup PTFE BS048 - 4.773 X 4.879 X 0.049"
0
BUT-048 - Backup PTFE BS048 - 4.773 X 4.879 X 0.049"
Product Information
Product CodeBUT-048
DescriptionBackup PTFE BS048 - 4.773 X 4.879 X 0.049"
ProfileBUT
Internal Diameter4.773
Outer Diameter4.879
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS048
 
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