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Pressure-Rated Metal-Bonded Sealing Washers for Nuts and Washers
Also known as thread-sealing washers, use these under nuts and other washers. Rated to withstand pressure at or greater than 2,000 psi, these one-piece metal-to-rubber bonded washers create a stronger seal than metal or rubber alone. They are zinc-plated steel for corrosion resistance in wet environments. The Buna-N rubber seal has excellent abrasion resistance and good oil, weather, and chemical resistance. Washers are reusable.
For technical drawings and 3-D models, click on a part number.
Max. Pressure, psi | Temperature Range, °F | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size  | ID | OD | Thick. | For Fluids | For Gases | Min. | Max. | Hardness | Seal Hardness | Seal Color | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel with Buna-N Rubber Seal | |||||||||||||
| No. 6 | 0.141" | 0.406" | 0.045"-0.055" | 2,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 000000 |
| No. 8 | 0.167" | 0.406" | 0.045"-0.055" | 2,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| No. 10 | 0.194" | 0.469" | 0.045"-0.055" | 2,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 1/4" | 0.255" | 0.562" | 0.045"-0.055" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 5/16" | 0.319" | 0.687" | 0.059"-0.069" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 3/8" | 0.383" | 0.750" | 0.059"-0.069" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 7/16" | 0.447" | 0.906" | 0.073"-0.083" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 1/2" | 0.510" | 1.000" | 0.073"-0.083" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 5/8" | 0.638" | 1.187" | 0.089"-0.099" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 3/4" | 0.765" | 1.375" | 0.104"-0.114" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| 1" | 1.020" | 1.750" | 0.115"-0.125" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 00000 |