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About Washers
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Mil. Spec. Washers
Choose these washers for their adherence to strict military standards for material and construction.
Aluminum washers are lightweight and have good corrosion resistance. 2024 aluminum washers are easy to machine. They are stronger and resist wear better than 1100 aluminum. They are commonly used in the aircraft industry and in veterinary and orthopedic equipment. Chromium carbide 2024 aluminum washers are more corrosion resistant than 2024 aluminum with no finish.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Chromium Carbide 2024 Aluminum | ||||||||
|---|---|---|---|---|---|---|---|---|
NAS1149 | ||||||||
| No. 2 | 0.099" | 0.250" | 0.013"-0.019" | Not Rated | NAS1149-DN216J | 100 | 000000000 | 000000 |
| No. 3 | 0.105" | 0.250" | 0.013"-0.019" | Not Rated | NAS1149-DN316J | 100 | 000000000 | 00000 |
| No. 3 | 0.105" | 0.250" | 0.028"-0.036" | Not Rated | NAS1149-DN332J | 100 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.013"-0.019" | Not Rated | NAS1149-DN416J | 100 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.028"-0.036" | Not Rated | NAS1149-DN432J | 100 | 000000000 | 00000 |
| No. 5 | 0.140" | 0.438" | 0.013"-0.019" | Not Rated | NAS1149-DN516J | 100 | 000000000 | 00000 |
| No. 5 | 0.140" | 0.438" | 0.028"-0.036" | Not Rated | NAS1149-DN532J | 100 | 000000000 | 00000 |
| No. 6 | 0.149" | 0.375" | 0.013"-0.019" | Not Rated | NAS1149-DN616J | 100 | 000000000 | 00000 |
| No. 6 | 0.149" | 0.375" | 0.028"-0.036" | Not Rated | NAS1149-DN632J | 100 | 000000000 | 00000 |
| No. 8 | 0.174" | 0.375" | 0.013"-0.019" | Not Rated | NAS1149-DN816J | 100 | 000000000 | 00000 |
| No. 8 | 0.174" | 0.375" | 0.028"-0.036" | Not Rated | NAS1149-DN832J | 100 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.438" | 0.013"-0.019" | Not Rated | NAS1149-D0316J | 100 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.438" | 0.028"-0.036" | Not Rated | NAS1149-D0332J | 100 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.438" | 0.057"-0.069" | Not Rated | NAS1149-D0363J | 50 | 000000000 | 0000 |
| 1/4" | 0.265" | 0.500" | 0.013"-0.019" | Not Rated | NAS1149-D0416J | 50 | 000000000 | 0000 |
| 1/4" | 0.265" | 0.500" | 0.028"-0.036" | Not Rated | NAS1149-D0432J | 50 | 000000000 | 0000 |
| 1/4" | 0.265" | 0.500" | 0.057"-0.069" | Not Rated | NAS1149-D0463J | 50 | 000000000 | 00000 |
| 5/16" | 0.328" | 0.562" | 0.028"-0.036" | Not Rated | NAS1149-D0532J | 50 | 000000000 | 00000 |
| 5/16" | 0.328" | 0.562" | 0.057"-0.069" | Not Rated | NAS1149-D0563J | 50 | 000000000 | 00000 |
| 3/8" | 0.390" | 0.625" | 0.013"-0.019" | Not Rated | NAS1149-D0616J | 50 | 000000000 | 0000 |
| 3/8" | 0.390" | 0.625" | 0.028"-0.036" | Not Rated | NAS1149-D0632J | 25 | 000000000 | 0000 |
| 3/8" | 0.390" | 0.625" | 0.057"-0.069" | Not Rated | NAS1149-D0663J | 50 | 000000000 | 0000 |
| 7/16" | 0.453" | 0.750" | 0.013"-0.019" | Not Rated | NAS1149-D0716J | 50 | 000000000 | 00000 |
| 7/16" | 0.453" | 0.750" | 0.028"-0.036" | Not Rated | NAS1149-D0732J | 20 | 000000000 | 00000 |
| 7/16" | 0.453" | 0.750" | 0.057"-0.069" | Not Rated | NAS1149-D0763J | 25 | 000000000 | 0000 |
| 1/2" | 0.515" | 0.875" | 0.013"-0.019" | Not Rated | NAS1149-D0816J | 20 | 000000000 | 00000 |
| 1/2" | 0.515" | 0.875" | 0.028"-0.036" | Not Rated | NAS1149-D0832J | 25 | 000000000 | 00000 |
| 1/2" | 0.515" | 0.875" | 0.057"-0.069" | Not Rated | NAS1149-D0863J | 25 | 000000000 | 00000 |
| 9/16" | 0.578" | 1.062" | 0.013"-0.019" | Not Rated | NAS1149-D0916J | 20 | 000000000 | 00000 |
| 9/16" | 0.578" | 1.062" | 0.028"-0.036" | Not Rated | NAS1149-D0932J | 10 | 000000000 | 0000 |
| 9/16" | 0.578" | 1.062" | 0.057"-0.069" | Not Rated | NAS1149-D0963J | 10 | 000000000 | 0000 |
| 5/8" | 0.640" | 1.188" | 0.013"-0.019" | Not Rated | NAS1149-D1016J | 20 | 000000000 | 00000 |
| 5/8" | 0.640" | 1.188" | 0.028"-0.036" | Not Rated | NAS1149-D1032J | 10 | 000000000 | 0000 |
| 5/8" | 0.640" | 1.188" | 0.057"-0.069" | Not Rated | NAS1149-D1063J | 10 | 000000000 | 00000 |
| 3/4" | 0.765" | 1.312" | 0.013"-0.019" | Not Rated | NAS1149-D1216J | 10 | 000000000 | 00000 |
| 3/4" | 0.765" | 1.312" | 0.028"-0.036" | Not Rated | NAS1149-D1232J | 10 | 000000000 | 00000 |
| 3/4" | 0.765" | 1.312" | 0.083"-0.097" | Not Rated | NAS1149-D1290J | 5 | 000000000 | 0000 |
| 7/8" | 0.890" | 1.500" | 0.013"-0.019" | Not Rated | NAS1149-D1416J | 10 | 000000000 | 00000 |
| 7/8" | 0.890" | 1.500" | 0.028"-0.036" | Not Rated | NAS1149-D1432J | 10 | 000000000 | 00000 |
| 7/8" | 0.890" | 1.500" | 0.083"-0.097" | Not Rated | NAS1149-D1490J | 5 | 000000000 | 0000 |
| 1" | 1.015" | 1.750" | 0.013"-0.019" | Not Rated | NAS1149-D1616J | 10 | 000000000 | 00000 |
| 1" | 1.015" | 1.750" | 0.028"-0.036" | Not Rated | NAS1149-D1632J | 5 | 000000000 | 0000 |
| 1 1/8" | 1.140" | 1.875" | 0.013"-0.019" | Not Rated | NAS1149-D1816J | 5 | 000000000 | 0000 |
| 1 5/16" | 1.328" | 2.062" | 0.013"-0.019" | Not Rated | NAS1149-D2116J | 10 | 000000000 | 0000 |
| 1 1/16" | 1.078" | 1.812" | 0.013"-0.019" | Not Rated | NAS1149-D1716J | 5 | 000000000 | 0000 |
| 1 1/16" | 1.078" | 1.812" | 0.028"-0.036" | Not Rated | NAS1149-D1732J | 5 | 000000000 | 0000 |
| 1 1/16" | 1.078" | 1.812" | 0.083"-0.097" | Not Rated | NAS1149-D1790J | 5 | 000000000 | 00000 |