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Specifications Met Specifications Met |
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System of Measurement System of Measurement |
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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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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Hardness Hardness |
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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.
18-8 stainless steel and 321 stainless steel washers have excellent corrosion resistance in most environments. They may be mildly magnetic. Passivated 18-8 stainless steel washers have added protection against oxidation and corrosion. Cadmium- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Passivated 18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
NAS620 | ||||||||
| No. 0 | 0.063" | 0.099" | 0.015"-0.018" | Rockwell B70 | NAS620C0 | 250 | 000000000 | 000000 |
| No. 2 | 0.089" | 0.149" | 0.015"-0.018" | Rockwell B70 | NAS620C2 | 500 | 000000000 | 00000 |
| No. 3 | 0.102" | 0.180" | 0.015"-0.018" | Rockwell B70 | NAS620C3L | 500 | 000000000 | 00000 |
| No. 3 | 0.102" | 0.180" | 0.030"-0.034" | Rockwell B70 | NAS620C3 | 500 | 000000000 | 00000 |
| No. 4 | 0.115" | 0.209" | 0.015"-0.018" | Rockwell B70 | NAS620C4L | 500 | 000000000 | 00000 |
| No. 4 | 0.115" | 0.209" | 0.030"-0.034" | Rockwell B70 | NAS620C4 | 500 | 000000000 | 00000 |
| No. 5 | 0.128" | 0.238" | 0.015"-0.018" | Rockwell B70 | NAS620C5L | 500 | 000000000 | 00000 |
| No. 5 | 0.128" | 0.238" | 0.030"-0.034" | Rockwell B70 | NAS620C5 | 250 | 000000000 | 00000 |
| No. 6 | 0.143" | 0.267" | 0.015"-0.018" | Rockwell B70 | NAS620C6L | 250 | 000000000 | 00000 |
| No. 6 | 0.143" | 0.267" | 0.030"-0.034" | Rockwell B70 | NAS620C6 | 250 | 000000000 | 00000 |
| No. 8 | 0.169" | 0.304" | 0.015"-0.018" | Rockwell B70 | NAS620C8L | 250 | 000000000 | 00000 |
| No. 8 | 0.169" | 0.304" | 0.030"-0.034" | Rockwell B70 | NAS620C8 | 250 | 000000000 | 00000 |
| No. 10 | 0.195" | 0.354" | 0.030"-0.034" | Rockwell B70 | NAS620C10L | 250 | 000000000 | 00000 |
| No. 10 | 0.195" | 0.354" | 0.060"-0.066" | Rockwell B70 | NAS620C10 | 100 | 000000000 | 00000 |
| 1/4" | 0.255" | 0.468" | 0.030"-0.034" | Rockwell B70 | NAS620C416L | 100 | 000000000 | 00000 |
| 1/4" | 0.255" | 0.468" | 0.060"-0.066" | Rockwell B70 | NAS620C416 | 100 | 000000000 | 00000 |
Cadmium Yellow-Chromate Plated Steel | ||||||||
NAS620 | ||||||||
| No. 0 | 0.063" | 0.099" | 0.015"-0.017" | Rockwell B70 | NAS620-0 | 100 | 00000000 | 00000 |
| No. 2 | 0.089" | 0.149" | 0.015"-0.017" | Rockwell B70 | NAS620-2 | 100 | 00000000 | 0000 |
| No. 3 | 0.102" | 0.180" | 0.015"-0.017" | Rockwell B70 | NAS620-3L | 25 | 00000000 | 0000 |
| No. 3 | 0.102" | 0.180" | 0.031"-0.033" | Rockwell B70 | NAS620-3 | 25 | 00000000 | 00000 |
| No. 4 | 0.115" | 0.209" | 0.015"-0.017" | Rockwell B70 | NAS620-4L | 100 | 00000000 | 00000 |
| No. 4 | 0.115" | 0.209" | 0.031"-0.033" | Rockwell B70 | NAS620-4 | 100 | 00000000 | 00000 |
| No. 5 | 0.128" | 0.238" | 0.015"-0.017" | Rockwell B70 | NAS620-5L | 100 | 00000000 | 0000 |
| No. 5 | 0.128" | 0.238" | 0.031"-0.033" | Rockwell B70 | NAS620-5 | 250 | 00000000 | 00000 |
| No. 6 | 0.143" | 0.267" | 0.015"-0.017" | Rockwell B70 | NAS620-6L | 100 | 00000000 | 0000 |
| No. 6 | 0.143" | 0.267" | 0.031"-0.033" | Rockwell B70 | NAS620-6 | 100 | 00000000 | 00000 |
| No. 8 | 0.169" | 0.304" | 0.015"-0.017" | Rockwell B70 | NAS620-8L | 250 | 00000000 | 00000 |
| No. 8 | 0.169" | 0.304" | 0.031"-0.033" | Rockwell B70 | NAS620-8 | 100 | 00000000 | 00000 |
| No. 10 | 0.195" | 0.354" | 0.031"-0.033" | Rockwell B70 | NAS620-10L | 100 | 00000000 | 0000 |
| No. 10 | 0.195" | 0.354" | 0.062"-0.064" | Rockwell B70 | NAS620-10 | 100 | 00000000 | 0000 |
| 1/4" | 0.255" | 0.468" | 0.031"-0.033" | Rockwell B70 | NAS620-416L | 100 | 00000000 | 00000 |
| 1/4" | 0.255" | 0.468" | 0.062"-0.064" | Rockwell B70 | NAS620-416 | 100 | 00000000 | 00000 |