System of Measurement System of Measurement |
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Thickness Thickness |
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Material Material |
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Washer Type Washer Type |
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![]() | Flat |
Color Color |
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![]() | White |
Specifications Met Specifications Met |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Hardness Hardness |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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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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About Washers
More
Mil. Spec. Plastic Washers

Choose these washers for their adherence to strict military standards for material and construction. They have a good mix of strength and electrical insulating properties. Exposure to moisture may cause them to expand.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||
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For Screw Size | ID | OD | Thick. | Min. | Max. | Specifications Met | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | ||||||||||
NAS1515 | ||||||||||
No. 2 | 0.105" | 0.250" | 0.021"-0.041" | -40° | 180° | NAS1515-H02L | White | 100 | 000000000 | 000000 |
No. 2 | 0.105" | 0.250" | 0.053"-0.073" | -40° | 180° | NAS1515-H02 | White | 100 | 000000000 | 00000 |
No. 4 | 0.125" | 0.312" | 0.021"-0.041" | -40° | 180° | NAS1515-H04L | White | 100 | 000000000 | 00000 |
No. 4 | 0.125" | 0.312" | 0.053"-0.073" | -40° | 180° | NAS1515-H04 | White | 100 | 000000000 | 00000 |
No. 6 | 0.149" | 0.375" | 0.021"-0.041" | -40° | 180° | NAS1515-H06L | White | 50 | 000000000 | 0000 |
No. 6 | 0.149" | 0.375" | 0.053"-0.073" | -40° | 180° | NAS1515-H06 | White | 50 | 000000000 | 00000 |
No. 8 | 0.174" | 0.375" | 0.021"-0.041" | -40° | 180° | NAS1515-H08L | White | 50 | 000000000 | 0000 |
No. 8 | 0.174" | 0.375" | 0.053"-0.073" | -40° | 180° | NAS1515-H08 | White | 50 | 000000000 | 0000 |
No. 10 | 0.203" | 0.438" | 0.021"-0.041" | -40° | 180° | NAS1515-H3L | White | 50 | 000000000 | 0000 |
No. 10 | 0.203" | 0.438" | 0.053"-0.073" | -40° | 180° | NAS1515-H3 | White | 50 | 000000000 | 00000 |
No. 10 | 0.203" | 0.438" | 0.084"-0.104" | -40° | 180° | NAS1515-H3H | White | 50 | 000000000 | 00000 |
1/4" | 0.265" | 0.500" | 0.021"-0.041" | -40° | 180° | NAS1515-H4L | White | 50 | 000000000 | 00000 |
1/4" | 0.265" | 0.500" | 0.053"-0.073" | -40° | 180° | NAS1515-H4 | White | 50 | 000000000 | 00000 |
1/4" | 0.265" | 0.500" | 0.084"-0.104" | -40° | 180° | NAS1515-H4H | White | 50 | 000000000 | 00000 |
5/16" | 0.328" | 0.562" | 0.021"-0.041" | -40° | 180° | NAS1515-H5L | White | 50 | 000000000 | 0000 |
5/16" | 0.328" | 0.562" | 0.053"-0.073" | -40° | 180° | NAS1515-H5 | White | 50 | 000000000 | 00000 |
5/16" | 0.328" | 0.562" | 0.084"-0.104" | -40° | 180° | NAS1515-H5H | White | 50 | 000000000 | 00000 |
3/8" | 0.390" | 0.625" | 0.021"-0.041" | -40° | 180° | NAS1515-H6L | White | 50 | 000000000 | 00000 |
3/8" | 0.390" | 0.625" | 0.053"-0.073" | -40° | 180° | NAS1515-H6 | White | 50 | 000000000 | 00000 |
3/8" | 0.390" | 0.625" | 0.084"-0.104" | -40° | 180° | NAS1515-H6H | White | 50 | 000000000 | 00000 |
7/16" | 0.453" | 0.750" | 0.021"-0.041" | -40° | 180° | NAS1515-H7L | White | 50 | 000000000 | 00000 |
7/16" | 0.453" | 0.750" | 0.053"-0.073" | -40° | 180° | NAS1515-H7 | White | 50 | 000000000 | 00000 |
7/16" | 0.453" | 0.750" | 0.084"-0.104" | -40° | 180° | NAS1515-H7H | White | 50 | 000000000 | 00000 |
1/2" | 0.515" | 0.875" | 0.021"-0.041" | -40° | 180° | NAS1515-H8L | White | 50 | 000000000 | 00000 |
1/2" | 0.515" | 0.875" | 0.053"-0.073" | -40° | 180° | NAS1515-H8 | White | 50 | 000000000 | 00000 |
1/2" | 0.515" | 0.875" | 0.084"-0.104" | -40° | 180° | NAS1515-H8H | White | 50 | 000000000 | 00000 |
9/16" | 0.578" | 1.062" | 0.021"-0.041" | -40° | 180° | NAS1515-H9L | White | 25 | 000000000 | 0000 |
9/16" | 0.578" | 1.062" | 0.053"-0.073" | -40° | 180° | NAS1515-H9 | White | 25 | 000000000 | 0000 |
9/16" | 0.578" | 1.062" | 0.084"-0.104" | -40° | 180° | NAS1515-H9H | White | 25 | 000000000 | 00000 |
5/8" | 0.640" | 1.188" | 0.021"-0.041" | -40° | 180° | NAS1515-H10L | White | 25 | 000000000 | 00000 |
5/8" | 0.640" | 1.188" | 0.053"-0.073" | -40° | 180° | NAS1515-H10 | White | 25 | 000000000 | 00000 |
5/8" | 0.640" | 1.188" | 0.084"-0.104" | -40° | 180° | NAS1515-H10H | White | 10 | 000000000 | 0000 |
3/4" | 0.765" | 1.312" | 0.021"-0.041" | -40° | 180° | NAS1515-H12L | White | 25 | 000000000 | 00000 |
3/4" | 0.765" | 1.312" | 0.053"-0.073" | -40° | 180° | NAS1515-H12 | White | 25 | 000000000 | 00000 |
3/4" | 0.765" | 1.312" | 0.084"-0.104" | -40° | 180° | NAS1515-H12H | White | 10 | 000000000 | 0000 |
7/8" | 0.890" | 1.500" | 0.021"-0.041" | -40° | 180° | NAS1515-H14L | White | 10 | 000000000 | 0000 |
7/8" | 0.890" | 1.500" | 0.053"-0.073" | -40° | 180° | NAS1515-H14 | White | 10 | 000000000 | 0000 |
7/8" | 0.890" | 1.500" | 0.084"-0.104" | -40° | 180° | NAS1515-H14H | White | 10 | 000000000 | 0000 |
1" | 1.015" | 1.750" | 0.021"-0.041" | -40° | 180° | NAS1515-H16L | White | 10 | 000000000 | 0000 |
1" | 1.015" | 1.750" | 0.053"-0.073" | -40° | 180° | NAS1515-H16 | White | 10 | 000000000 | 0000 |
1" | 1.015" | 1.750" | 0.084"-0.104" | -40° | 180° | NAS1515-H16H | White | 10 | 000000000 | 00000 |