Cross Section Shape Cross Section Shape |
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![]() | Round |
Hardness Hardness |
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Hardness Rating Hardness Rating |
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![]() | Hard |
Color Color |
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![]() | Black |
Material Material |
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For Use With For Use With |
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Maximum Temperature Maximum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Minimum Temperature Minimum Temperature |
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Specifications Met Specifications Met |
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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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About O-Rings
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Oil-Resistant Hard Buna-N O-Ring Cord Stock

Harder than standard Buna-N cord stock for better wear resistance. It resists hydraulic oils, motor oil, petroleum fluids, and ethylene glycol. Use it to make round-profile O-rings, which are suitable for a wide range of static and dynamic sealing applications.
For technical drawings and 3-D models, click on a part number.
Metric
Wd., mm | Hardness | Specifications Met | Temperature Range, °F | Color | Lengths, ft. | Per Ft. | |
2 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 00000 | |
2.5 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 000 | |
3 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 000 | |
3.5 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 000 | |
4 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 000 | |
4.5 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 000 | |
5 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 0000 | |
5.5 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 0000 | |
6 | Durometer 90A (Hard) | ASTM D2000 | -25° to 212° | Black | 0000000 | 0000 |