Cross Section Shape Cross Section Shape |
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 | Rectangle |
Construction Construction |
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For Use With For Use With |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Hardness Rating Hardness Rating |
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 | Hard |
Hardness Hardness |
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Number of Pieces Number of Pieces |
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Top Shape Top Shape |
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Material Material |
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Color Color |
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 | White |
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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About O-Rings
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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 | 0000000 |