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System of Measurement System of Measurement |
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For Screw Size For Screw Size |
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Thickness Thickness |
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Specifications Met Specifications Met |
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OD OD |
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Washer Type Washer Type |
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 | Flat |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Drive Style Drive Style |
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Hardness Hardness |
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For Adapting For Adapting |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Tensile Strength Tensile Strength |
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About Washers
More
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. Yellow-chromate plated 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. | |
Yellow-Chromate Plated 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" | 0.313" | 0.013"-0.019" | Not Rated | NAS1149-DN416J | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.313" | 0.028"-0.036" | Not Rated | NAS1149-DN432J | 100 | 000000000 | 0000 |
| 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 | 0000 |
| No. 6 | 0.149" | 0.375" | 0.028"-0.036" | Not Rated | NAS1149-DN632J | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.375" | 0.013"-0.019" | Not Rated | NAS1149-DN816J | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.375" | 0.028"-0.036" | Not Rated | NAS1149-DN832J | 100 | 000000000 | 0000 |
| 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 | 0000 |
| No. 10 | 0.203" | 0.438" | 0.057"-0.069" | Not Rated | NAS1149-D0363J | 100 | 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 | 100 | 000000000 | 0000 |
| 1/4" | 0.265" | 0.500" | 0.057"-0.069" | Not Rated | NAS1149-D0463J | 50 | 000000000 | 0000 |
| 5/16" | 0.328" | 0.562" | 0.028"-0.036" | Not Rated | NAS1149-D0532J | 50 | 000000000 | 00000 |
| 5/16" | 0.328" | 0.563" | 0.013"-0.019" | Not Rated | NAS1149-D0516J | 50 | 000000000 | 0000 |
| 5/16" | 0.328" | 0.563" | 0.057"-0.069" | Not Rated | NAS1149-D0563J | 50 | 000000000 | 0000 |
| 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 | 25 | 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 | 00000 |
| 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 | 0000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 |
Inch-to-Inch Male-Female Hex Thread Adapters
Change thread sizes or types, such as fine to coarse threads, on parts without changing gender. These adapters can also be used as standoffs to position components in assemblies and to create space between parts. They have an external hex, so you can tighten them with a wrench.
At about a third of the weight of steel adapters, aluminum adapters are the lightest we offer. They resist corrosion in wet environments.
Adapters that meet NAS standards are made to specific dimensions and are finished with an extra layer of rust protection. Aluminum adapters that meet NAS standards have a yellow-chromate plating, and stainless steel adapters have been passivated.
For technical drawings and 3-D models, click on a part number.
Thread Size | Thread Lg. | Gender | Thread Fit | Hex | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | (A) | (B) | (A) | (B) | Size | Lg. | Specifications Met | Tensile Strength, psi | Hardness | Each | |
Yellow-Chromate-Plated Aluminum | ||||||||||||||
| 4-40 | 2-56 | 3/16" | 3/16" | Male | Female | Class 2A | Class 2B | 3/16" | 1/2" | NAS1829AC3B08 | 45,000 | Rockwell B56 | 000000000 | 00000 |
| 6-32 | 4-40 | 1/4" | 1/4" | Male | Female | Class 2A | Class 2B | 1/4" | 1/2" | NAS1829AC4D08 | 45,000 | Rockwell B56 | 000000000 | 0000 |
| 8-32 | 6-32 | 3/8" | 3/8" | Male | Female | Class 2A | Class 2B | 3/8" | 1/2" | NAS1829AC6F08 | 45,000 | Rockwell B56 | 000000000 | 0000 |
| 10-32 | 8-32 | 3/8" | 7/16" | Male | Female | Class 2A | Class 2B | 3/8" | 3/4" | NAS1829AC6H12 | 45,000 | Rockwell B56 | 000000000 | 0000 |