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General Purpose Washers

400 nickel washers have excellent resistance to salt water and some acids. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Hardness | Pkg. Qty. | Pkg. | |
400 Nickel | |||||||
---|---|---|---|---|---|---|---|
1/4" | 0.265" | 0.688" | 0.047"-0.052" | Rockwell C45 | 10 | 000000000 | 000000 |
5/16" | 0.344" | 0.750" | 0.047"-0.052" | Rockwell C45 | 5 | 000000000 | 00000 |
3/8" | 0.390" | 1.000" | 0.054"-0.068" | Rockwell C45 | 5 | 000000000 | 00000 |
1/2" | 0.562" | 1.250" | 0.071"-0.084" | Rockwell C45 | 1 | 000000000 | 0000 |
5/8" | 0.688" | 1.500" | 0.071"-0.084" | Rockwell C45 | 1 | 000000000 | 00000 |
3/4" | 0.812" | 1.750" | 0.085"-0.102" | Rockwell C45 | 1 | 000000000 | 00000 |
Mil. Spec. Washers

Choose these washers for their adherence to strict military standards for material and construction.
Copper and brass washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive. Nickel copper washers (also known as Monel) are more corrosion resistant than stainless steel. They have excellent resistance to salt water and some acids.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Nickel Copper | ||||||||
---|---|---|---|---|---|---|---|---|
MS15795 | ||||||||
No. 1 | 0.078" | 0.188" | 0.016"-0.025" | Rockwell B89 | MS15795-401 | 25 | 000000000 | 000000 |
No. 2 | 0.094" | 0.250" | 0.016"-0.025" | Rockwell B89 | MS15795-402 | 25 | 000000000 | 00000 |
No. 4 | 0.125" | 0.250" | 0.017"-0.028" | Rockwell B89 | MS15795-403 | 25 | 000000000 | 00000 |
No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Rockwell B89 | MS15795-404 | 25 | 000000000 | 00000 |
No. 6 | 0.156" | 0.312" | 0.027"-0.048" | Rockwell B89 | MS15795-405 | 25 | 000000000 | 00000 |
No. 8 | 0.188" | 0.375" | 0.036"-0.065" | Rockwell B89 | MS15795-407 | 10 | 000000000 | 00000 |
No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Rockwell B89 | MS15795-441 | 10 | 000000000 | 00000 |
No. 10 | 0.219" | 0.438" | 0.036"-0.065" | Rockwell B89 | MS15795-408 | 10 | 000000000 | 00000 |
No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Rockwell B89 | MS15795-442 | 10 | 000000000 | 00000 |
1/4" | 0.281" | 0.625" | 0.051"-0.080" | Rockwell B89 | MS15795-410 | 5 | 000000000 | 00000 |
1/4" | 0.312" | 0.734" | 0.051"-0.080" | Rockwell B89 | MS15795-411 | 5 | 000000000 | 00000 |
5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell B89 | MS15795-412 | 5 | 000000000 | 00000 |
3/8" | 0.406" | 0.625" | 0.051"-0.080" | Rockwell B89 | MS15795-448 | 5 | 000000000 | 00000 |
3/8" | 0.406" | 0.812" | 0.051"-0.080" | Rockwell B89 | MS15795-414 | 1 | 000000000 | 0000 |
7/16" | 0.500" | 0.875" | 0.058"-0.070" | Rockwell B89 | MS15795-449 | 1 | 000000000 | 0000 |
1/2" | 0.531" | 1.062" | 0.074"-0.121" | Rockwell B89 | MS15795-418 | 1 | 000000000 | 00000 |
5/8" | 0.688" | 1.750" | 0.108"-0.160" | Rockwell B89 | MS15795-421 | 1 | 000000000 | 00000 |
3/4" | 0.812" | 1.469" | 0.108"-0.160" | Rockwell B89 | MS15795-422 | 1 | 000000000 | 00000 |
7/8" | 0.938" | 1.750" | 0.108"-0.160" | Rockwell B89 | MS15795-424 | 1 | 000000000 | 00000 |
Split Lock Washers

As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.
K500 nickel washers (also known as Monel) have excellent resistance to salt water and some acids. They may be mildly magnetic.
Washers that meet ASME B18.21.1 adhere to strict dimensional standards.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
K500 Nickel | ||||||||
---|---|---|---|---|---|---|---|---|
1/4" | 0.260" | 0.487" | 0.062"-0.077" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 000000 |
5/16" | 0.322" | 0.583" | 0.078"-0.097" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
3/8" | 0.385" | 0.680" | 0.094"-0.115" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
1/2" | 0.512" | 0.869" | 0.125"-0.151" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
5/8" | 0.641" | 1.073" | 0.156"-0.189" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
Medium-Pressure Inline Strainers

- Max. Pressure for Water, Oil, and Diesel Fuel: 500 psi @ 70° F
- Temp. Range: 32° to 180° F
Use these strainers in medium-pressure applications to protect sensitive equipment from damage caused by debris. The screen is in the strainer body to save space. Strainers have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.