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About O-Rings
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Ultra-Chemical-Resistant PTFE Backup Rings
These PTFE backup rings resist harsh chemicals, such as acetone, fluorinated solvents, methanol, and many acids. Use them to extend the life of your O-rings and improve their performance in high-pressure applications.
For technical drawings and 3-D models, click on a part number.
| For Dash Number | Thick. | ID | OD | Hardness | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
0.053"Wide | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 005 | 0.049" | 0.124" | 0.230" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 006 | 0.049" | 0.140" | 0.246" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 007 | 0.049" | 0.171" | 0.277" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 008 | 0.049" | 0.202" | 0.308" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 009 | 0.049" | 0.234" | 0.340" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 010 | 0.049" | 0.265" | 0.371" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 011 | 0.049" | 0.327" | 0.433" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 012 | 0.049" | 0.390" | 0.496" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 013 | 0.049" | 0.455" | 0.561" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 014 | 0.049" | 0.518" | 0.624" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 015 | 0.049" | 0.580" | 0.686" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 016 | 0.049" | 0.643" | 0.749" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 017 | 0.049" | 0.705" | 0.811" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 018 | 0.049" | 0.768" | 0.874" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
0.086"Wide | |||||||||
| 110 | 0.049" | 0.390" | 0.562" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 0000 |
| 111 | 0.049" | 0.452" | 0.624" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 112 | 0.049" | 0.515" | 0.687" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 113 | 0.049" | 0.577" | 0.749" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 114 | 0.049" | 0.640" | 0.812" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 115 | 0.049" | 0.702" | 0.874" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 116 | 0.049" | 0.765" | 0.937" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 117 | 0.049" | 0.832" | 1.004" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 0000 |
| 118 | 0.049" | 0.895" | 1.067" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 119 | 0.049" | 0.957" | 1.129" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 0000 |
| 120 | 0.049" | 1.020" | 1.192" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 0000 |
| 121 | 0.049" | 1.082" | 1.254" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 0000 |
| 133 | 0.049" | 1.834" | 2.006" | Durometer 55D (Hard) | -300° to 500° | White | 10 | 00000000 | 00000 |
0.119"Wide | |||||||||
| 210 | 0.049" | 0.766" | 1.004" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 211 | 0.049" | 0.828" | 1.066" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 212 | 0.049" | 0.891" | 1.129" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 213 | 0.049" | 0.953" | 1.191" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 214 | 0.049" | 1.016" | 1.254" | Durometer 55D (Hard) | -300° to 500° | White | 50 | 0000000 | 00000 |
| 215 | 0.049" | 1.078" | 1.316" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 00000 |
| 216 | 0.049" | 1.141" | 1.379" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 00000 |
| 217 | 0.049" | 1.203" | 1.441" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 00000 |
| 218 | 0.049" | 1.266" | 1.504" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 00000 |
| 219 | 0.049" | 1.334" | 1.572" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 00000 |
| 222 | 0.049" | 1.522" | 1.760" | Durometer 55D (Hard) | -300° to 500° | White | 25 | 0000000 | 00000 |
0.183"Wide | |||||||||
| 328 | 0.07" | 1.888" | 2.254" | Durometer 55D (Hard) | -300° to 500° | White | 10 | 0000000 | 00000 |
| 329 | 0.07" | 2.013" | 2.379" | Durometer 55D (Hard) | -300° to 500° | White | 10 | 0000000 | 00000 |
| 330 | 0.07" | 2.138" | 2.504" | Durometer 55D (Hard) | -300° to 500° | White | 10 | 0000000 | 00000 |
Backup Ring Assortments
These 325-piece assortments mean you’ll always have a backup ring on hand. Use them to extend the life of your O-rings and improve their performance in high-pressure applications. The backup rings are made of PTFE and resist harsh chemicals such as, acetone, fluorinated solvents, methanol, and many acids.
| Number of Pieces | Number of Sizes | Includes | Hardness | Temperature Range, °F | Color | Each | |
| 325 | 36 | Dash Numbers 005-018, 110-121, 210-219 | Durometer 55D (Hard) | -100° to 500° | White | 0000000 | 000000 |