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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-020
Backup PTFE BS020 - 0.898 X 1.004 X 0.049"
171
BUT-020 - Backup PTFE BS020 - 0.898 X 1.004 X 0.049"
Product Information
Product CodeBUT-020
DescriptionBackup PTFE BS020 - 0.898 X 1.004 X 0.049"
ProfileBUT
Internal Diameter0.898
Outer Diameter1.004
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS020
BUT-317
Backup PTFE BS317 - 0.95 X 1.316 X 0.07"
0
BUT-317 - Backup PTFE BS317 - 0.95 X 1.316 X 0.07"
Product Information
Product CodeBUT-317
DescriptionBackup PTFE BS317 - 0.95 X 1.316 X 0.07"
ProfileBUT
Internal Diameter0.950
Outer Diameter1.316
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS317
BUT-213
Backup PTFE BS213 - 0.953 X 1.191 X 0.049"
71
BUT-213 - Backup PTFE BS213 - 0.953 X 1.191 X 0.049"
Product Information
Product CodeBUT-213
DescriptionBackup PTFE BS213 - 0.953 X 1.191 X 0.049"
ProfileBUT
Internal Diameter0.953
Outer Diameter1.191
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS213
BUT-119
Backup PTFE BS119 - 0.957 X 1.129 X 0.049"
149
BUT-119 - Backup PTFE BS119 - 0.957 X 1.129 X 0.049"
Product Information
Product CodeBUT-119
DescriptionBackup PTFE BS119 - 0.957 X 1.129 X 0.049"
ProfileBUT
Internal Diameter0.957
Outer Diameter1.129
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS119
BUT-021
Backup PTFE BS021 - 0.96 X 1.066 X 0.049" 23.95 X 26.74 X 1.20mm 75171756 ST021S OLD CODE
138
BUT-021 - Backup PTFE BS021 - 0.96 X 1.066 X 0.049" 23.95 X 26.74 X 1.20mm 75171756 ST021S OLD CODE
Product Information
Product CodeBUT-021
DescriptionBackup PTFE BS021 - 0.96 X 1.066 X 0.049" 23.95 X 26.74 X 1.20mm 75171756 ST021S OLD CODE
ProfileBUT
Internal Diameter0.960
Outer Diameter1.066
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS021
BUT-318
Backup PTFE BS318 - 1.013 X 1.379 X 0.07"
0
BUT-318 - Backup PTFE BS318 - 1.013 X 1.379 X 0.07"
Product Information
Product CodeBUT-318
DescriptionBackup PTFE BS318 - 1.013 X 1.379 X 0.07"
ProfileBUT
Internal Diameter1.013
Outer Diameter1.379
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS318
BUT-214
Backup PTFE BS214 - 1.016 X 1.254 X 0.049"
512
BUT-214 - Backup PTFE BS214 - 1.016 X 1.254 X 0.049"
Product Information
Product CodeBUT-214
DescriptionBackup PTFE BS214 - 1.016 X 1.254 X 0.049"
ProfileBUT
Internal Diameter1.016
Outer Diameter1.254
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS214
BUT-120
Backup PTFE BS120 - 1.02 X 1.192 X 0.049"
136
BUT-120 - Backup PTFE BS120 - 1.02 X 1.192 X 0.049"
Product Information
Product CodeBUT-120
DescriptionBackup PTFE BS120 - 1.02 X 1.192 X 0.049"
ProfileBUT
Internal Diameter1.020
Outer Diameter1.192
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS120
BUT-022
Backup PTFE BS022 - 1.023 X 1.129 X 0.049"
157
BUT-022 - Backup PTFE BS022 - 1.023 X 1.129 X 0.049"
Product Information
Product CodeBUT-022
DescriptionBackup PTFE BS022 - 1.023 X 1.129 X 0.049"
ProfileBUT
Internal Diameter1.023
Outer Diameter1.129
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS022
BUT-319
Backup PTFE BS319 - 1.075 X 1.441 X 0.07"
0
BUT-319 - Backup PTFE BS319 - 1.075 X 1.441 X 0.07"
Product Information
Product CodeBUT-319
DescriptionBackup PTFE BS319 - 1.075 X 1.441 X 0.07"
ProfileBUT
Internal Diameter1.075
Outer Diameter1.441
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS319
BUT-215
Backup PTFE BS215 - 1.078 X 1.316 X 0.049"
211
BUT-215 - Backup PTFE BS215 - 1.078 X 1.316 X 0.049"
Product Information
Product CodeBUT-215
DescriptionBackup PTFE BS215 - 1.078 X 1.316 X 0.049"
ProfileBUT
Internal Diameter1.078
Outer Diameter1.316
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS215
BUT-121
Backup PTFE BS121 - 1.082 X 1.254 X 0.049"
113
BUT-121 - Backup PTFE BS121 - 1.082 X 1.254 X 0.049"
Product Information
Product CodeBUT-121
DescriptionBackup PTFE BS121 - 1.082 X 1.254 X 0.049"
ProfileBUT
Internal Diameter1.082
Outer Diameter1.254
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS121
BUT-023
Backup PTFE BS023 - 1.085 X 1.191 X 0.049"
0
BUT-023 - Backup PTFE BS023 - 1.085 X 1.191 X 0.049"
Product Information
Product CodeBUT-023
DescriptionBackup PTFE BS023 - 1.085 X 1.191 X 0.049"
ProfileBUT
Internal Diameter1.085
Outer Diameter1.191
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS023
BUT-330
Backup PTFE BS330 - 1.138 X 1.504 X 0.07"
67
BUT-330 - Backup PTFE BS330 - 1.138 X 1.504 X 0.07"
Product Information
Product CodeBUT-330
DescriptionBackup PTFE BS330 - 1.138 X 1.504 X 0.07"
ProfileBUT
Internal Diameter1.138
Outer Diameter1.504
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS330
BUT-216
Backup PTFE BS216 - 1.141 X 1.379 X 0.049"
61
BUT-216 - Backup PTFE BS216 - 1.141 X 1.379 X 0.049"
Product Information
Product CodeBUT-216
DescriptionBackup PTFE BS216 - 1.141 X 1.379 X 0.049"
ProfileBUT
Internal Diameter1.141
Outer Diameter1.379
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS216
BUT-122
Backup PTFE BS122 - 1.145 X 1.317 X 0.049" 75171846 ST122S OLD CODE 28.62 X 33.09 X 1.20mm
109
BUT-122 - Backup PTFE BS122 - 1.145 X 1.317 X 0.049" 75171846 ST122S OLD CODE 28.62 X 33.09 X 1.20mm
Product Information
Product CodeBUT-122
DescriptionBackup PTFE BS122 - 1.145 X 1.317 X 0.049" 75171846 ST122S OLD CODE 28.62 X 33.09 X 1.20mm
ProfileBUT
Internal Diameter1.145
Outer Diameter1.317
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS122
BUT-024
Backup PTFE BS024 - 1.148 X 1.254 X 0.049"
501
BUT-024 - Backup PTFE BS024 - 1.148 X 1.254 X 0.049"
Product Information
Product CodeBUT-024
DescriptionBackup PTFE BS024 - 1.148 X 1.254 X 0.049"
ProfileBUT
Internal Diameter1.148
Outer Diameter1.254
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS024
BUT-217
Backup PTFE BS217 - 1.203 X 1.441 X 0.049"
20
BUT-217 - Backup PTFE BS217 - 1.203 X 1.441 X 0.049"
Product Information
Product CodeBUT-217
DescriptionBackup PTFE BS217 - 1.203 X 1.441 X 0.049"
ProfileBUT
Internal Diameter1.203
Outer Diameter1.441
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS217
BUT-123
Backup PTFE BS123 - 1.207 X 1.379 X 0.049"
318
BUT-123 - Backup PTFE BS123 - 1.207 X 1.379 X 0.049"
Product Information
Product CodeBUT-123
DescriptionBackup PTFE BS123 - 1.207 X 1.379 X 0.049"
ProfileBUT
Internal Diameter1.207
Outer Diameter1.379
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS123
BUT-025
Backup PTFE BS025 - 1.21 X 1.316 X 0.049"
0
BUT-025 - Backup PTFE BS025 - 1.21 X 1.316 X 0.049"
Product Information
Product CodeBUT-025
DescriptionBackup PTFE BS025 - 1.21 X 1.316 X 0.049"
ProfileBUT
Internal Diameter1.210
Outer Diameter1.316
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS025
BUT-322
Backup PTFE BS322 - 1.263 X 1.629 X 0.07"
48
BUT-322 - Backup PTFE BS322 - 1.263 X 1.629 X 0.07"
Product Information
Product CodeBUT-322
DescriptionBackup PTFE BS322 - 1.263 X 1.629 X 0.07"
ProfileBUT
Internal Diameter1.263
Outer Diameter1.629
Seal Height0.070
Max. Temp C260
Alt. Part No.RMS322
BUT-218
Backup PTFE BS218 - 1.266 X 1.504 X 0.049"
140
BUT-218 - Backup PTFE BS218 - 1.266 X 1.504 X 0.049"
Product Information
Product CodeBUT-218
DescriptionBackup PTFE BS218 - 1.266 X 1.504 X 0.049"
ProfileBUT
Internal Diameter1.266
Outer Diameter1.504
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS218
BUT-124
Backup PTFE BS124 - 1.27 X 1.442 X 0.049"
112
BUT-124 - Backup PTFE BS124 - 1.27 X 1.442 X 0.049"
Product Information
Product CodeBUT-124
DescriptionBackup PTFE BS124 - 1.27 X 1.442 X 0.049"
ProfileBUT
Internal Diameter1.270
Outer Diameter1.442
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS124
BUT-026
Backup PTFE BS026 - 1.273 X 1.379 X 0.049"
114
BUT-026 - Backup PTFE BS026 - 1.273 X 1.379 X 0.049"
Product Information
Product CodeBUT-026
DescriptionBackup PTFE BS026 - 1.273 X 1.379 X 0.049"
ProfileBUT
Internal Diameter1.273
Outer Diameter1.379
Seal Height0.049
Max. Temp C260
Alt. Part No.RMS026
 
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