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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
BUT-261
Backup PTFE BS261 - 6.755 X 6.993 X 0.049"
96
BUT-261 - Backup PTFE BS261 - 6.755 X 6.993 X 0.049"
Product Information
Product CodeBUT-261
DescriptionBackup PTFE BS261 - 6.755 X 6.993 X 0.049"
ProfileBUT
Internal Diameter6.755
Outer Diameter6.993
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS261
BUT-364
Backup PTFE BS364 - 6.778 X 7.144 X 0.07"
10
BUT-364 - Backup PTFE BS364 - 6.778 X 7.144 X 0.07"
Product Information
Product CodeBUT-364
DescriptionBackup PTFE BS364 - 6.778 X 7.144 X 0.07"
ProfileBUT
Internal Diameter6.778
Outer Diameter7.144
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS364
BUTM-P007
Backup PTFE P007 - 7.00 X 10.00 X 1.25mm
0
BUTM-P007 - Backup PTFE P007 - 7.00 X 10.00 X 1.25mm
Product Information
Product CodeBUTM-P007
DescriptionBackup PTFE P007 - 7.00 X 10.00 X 1.25mm
ProfileBUT
Internal Diameter7.00
Outer Diameter10.00
Seal Height1.25
Max. Temp C260
BUT-441
Backup PTFE BS441 - 7.002 X 7.474 X 0.108"
12
BUT-441 - Backup PTFE BS441 - 7.002 X 7.474 X 0.108"
Product Information
Product CodeBUT-441
DescriptionBackup PTFE BS441 - 7.002 X 7.474 X 0.108"
ProfileBUT
Internal Diameter7.002
Outer Diameter7.474
Seal Height0.108
Max. Temp C260
Alt. Part No.RMS441
BUT-167
Backup PTFE BS167 - 7.005 X 7.181 X 0.05"
19
BUT-167 - Backup PTFE BS167 - 7.005 X 7.181 X 0.05"
Product Information
Product CodeBUT-167
DescriptionBackup PTFE BS167 - 7.005 X 7.181 X 0.05"
ProfileBUT
Internal Diameter7.005
Outer Diameter7.181
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS167
BUT-262
Backup PTFE BS262 - 7.005 X 7.243 X 0.049"
84
BUT-262 - Backup PTFE BS262 - 7.005 X 7.243 X 0.049"
Product Information
Product CodeBUT-262
DescriptionBackup PTFE BS262 - 7.005 X 7.243 X 0.049"
ProfileBUT
Internal Diameter7.005
Outer Diameter7.243
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS262
BUT-365
Backup PTFE BS365 - 7.028 X 7.394 X 0.07"
4
BUT-365 - Backup PTFE BS365 - 7.028 X 7.394 X 0.07"
Product Information
Product CodeBUT-365
DescriptionBackup PTFE BS365 - 7.028 X 7.394 X 0.07"
ProfileBUT
Internal Diameter7.028
Outer Diameter7.394
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS365
BUT-442
Backup PTFE BS442 - 7.252 X 7.724 X 0.108"
47
BUT-442 - Backup PTFE BS442 - 7.252 X 7.724 X 0.108"
Product Information
Product CodeBUT-442
DescriptionBackup PTFE BS442 - 7.252 X 7.724 X 0.108"
ProfileBUT
Internal Diameter7.252
Outer Diameter7.724
Seal Height0.108
Max. Temp C260
Alt. Part No.RMS442
BUT-168
Backup PTFE BS168 - 7.255 X 7.431 X 0.05"
0
BUT-168 - Backup PTFE BS168 - 7.255 X 7.431 X 0.05"
Product Information
Product CodeBUT-168
DescriptionBackup PTFE BS168 - 7.255 X 7.431 X 0.05"
ProfileBUT
Internal Diameter7.255
Outer Diameter7.431
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS168
BUT-263
Backup PTFE BS263 - 7.255 X 7.493 X 0.049"
0
BUT-263 - Backup PTFE BS263 - 7.255 X 7.493 X 0.049"
Product Information
Product CodeBUT-263
DescriptionBackup PTFE BS263 - 7.255 X 7.493 X 0.049"
ProfileBUT
Internal Diameter7.255
Outer Diameter7.493
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS263
BUT-366
Backup PTFE BS366 - 7.278 X 7.644 X 0.07" 184.15 X 193.44 X 1.70m 75172225 ST366S OLD CODE
11
BUT-366 - Backup PTFE BS366 - 7.278 X 7.644 X 0.07" 184.15 X 193.44 X 1.70m 75172225 ST366S OLD CODE
Product Information
Product CodeBUT-366
DescriptionBackup PTFE BS366 - 7.278 X 7.644 X 0.07" 184.15 X 193.44 X 1.70m 75172225 ST366S OLD CODE
ProfileBUT
Internal Diameter7.278
Outer Diameter7.644
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS366
BUT-443
Backup PTFE BS443 - 7.502 X 7.974 X 0.108"
25
BUT-443 - Backup PTFE BS443 - 7.502 X 7.974 X 0.108"
Product Information
Product CodeBUT-443
DescriptionBackup PTFE BS443 - 7.502 X 7.974 X 0.108"
ProfileBUT
Internal Diameter7.502
Outer Diameter7.974
Seal Height0.108
Max. Temp C260
Alt. Part No.RMS443
BUT-169
Backup PTFE BS169 - 7.505 X 7.681 X 0.05"
0
BUT-169 - Backup PTFE BS169 - 7.505 X 7.681 X 0.05"
Product Information
Product CodeBUT-169
DescriptionBackup PTFE BS169 - 7.505 X 7.681 X 0.05"
ProfileBUT
Internal Diameter7.505
Outer Diameter7.681
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS169
BUT-264
Backup PTFE BS264 - 7.505 X 7.743 X 0.049"
0
BUT-264 - Backup PTFE BS264 - 7.505 X 7.743 X 0.049"
Product Information
Product CodeBUT-264
DescriptionBackup PTFE BS264 - 7.505 X 7.743 X 0.049"
ProfileBUT
Internal Diameter7.505
Outer Diameter7.743
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS264
BUT-367
Backup PTFE BS367 - 7.528 X 7.894 X 0.07"
4
BUT-367 - Backup PTFE BS367 - 7.528 X 7.894 X 0.07"
Product Information
Product CodeBUT-367
DescriptionBackup PTFE BS367 - 7.528 X 7.894 X 0.07"
ProfileBUT
Internal Diameter7.528
Outer Diameter7.894
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS367
BUT-444
Backup PTFE BS444 - 7.752 X 8.224 X 0.108"
20
BUT-444 - Backup PTFE BS444 - 7.752 X 8.224 X 0.108"
Product Information
Product CodeBUT-444
DescriptionBackup PTFE BS444 - 7.752 X 8.224 X 0.108"
ProfileBUT
Internal Diameter7.752
Outer Diameter8.224
Seal Height0.108
Max. Temp C260
Alt. Part No.RMS444
BUT-170
Backup PTFE BS170 - 7.755 X 7.931 X 0.05"
0
BUT-170 - Backup PTFE BS170 - 7.755 X 7.931 X 0.05"
Product Information
Product CodeBUT-170
DescriptionBackup PTFE BS170 - 7.755 X 7.931 X 0.05"
ProfileBUT
Internal Diameter7.755
Outer Diameter7.931
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS170
BUT-265
Backup PTFE BS265 - 7.755 X 7.993 X 0.049"
13
BUT-265 - Backup PTFE BS265 - 7.755 X 7.993 X 0.049"
Product Information
Product CodeBUT-265
DescriptionBackup PTFE BS265 - 7.755 X 7.993 X 0.049"
ProfileBUT
Internal Diameter7.755
Outer Diameter7.993
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS265
BUT-368
Backup PTFE BS368 - 7.778 X 8.144 X 0.07"
36
BUT-368 - Backup PTFE BS368 - 7.778 X 8.144 X 0.07"
Product Information
Product CodeBUT-368
DescriptionBackup PTFE BS368 - 7.778 X 8.144 X 0.07"
ProfileBUT
Internal Diameter7.778
Outer Diameter8.144
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS368
BUT-372
Backup PTFE BS372 - 7.778 X 8.144 X 0.07"
49
BUT-372 - Backup PTFE BS372 - 7.778 X 8.144 X 0.07"
Product Information
Product CodeBUT-372
DescriptionBackup PTFE BS372 - 7.778 X 8.144 X 0.07"
ProfileBUT
Internal Diameter7.778
Outer Diameter8.144
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS372
BUTM-P008
Backup PTFE P008 - 8.00 X 11.00 X 1.25mm
-
Enquire
BUTM-P008 - Backup PTFE P008 - 8.00 X 11.00 X 1.25mm
Product Information
Product CodeBUTM-P008
DescriptionBackup PTFE P008 - 8.00 X 11.00 X 1.25mm
ProfileBUT
Internal Diameter8.00
Outer Diameter11.00
Seal Height1.25
Max. Temp C260
BUT-445
Backup PTFE BS445 - 8.002 X 8.474 X 0.108"
36
BUT-445 - Backup PTFE BS445 - 8.002 X 8.474 X 0.108"
Product Information
Product CodeBUT-445
DescriptionBackup PTFE BS445 - 8.002 X 8.474 X 0.108"
ProfileBUT
Internal Diameter8.002
Outer Diameter8.474
Seal Height0.108
Max. Temp C260
Alt. Part No.RMS445
BUT-171
Backup PTFE BS171 - 8.005 X 8.181 X 0.05"
0
BUT-171 - Backup PTFE BS171 - 8.005 X 8.181 X 0.05"
Product Information
Product CodeBUT-171
DescriptionBackup PTFE BS171 - 8.005 X 8.181 X 0.05"
ProfileBUT
Internal Diameter8.005
Outer Diameter8.181
Seal Height0.050
Max. Temp C260
Alt. Part No.RMS171
BUT-266
Backup PTFE BS266 - 8.005 X 8.243 X 0.049"
6
BUT-266 - Backup PTFE BS266 - 8.005 X 8.243 X 0.049"
Product Information
Product CodeBUT-266
DescriptionBackup PTFE BS266 - 8.005 X 8.243 X 0.049"
ProfileBUT
Internal Diameter8.005
Outer Diameter8.243
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS266
 
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