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About Washers
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Electrical-Insulating Plastic Washers
These washers are excellent electrical insulators.
Hard fiber washers resist organic solvents and petroleum-based oils.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | Min. | Max. | Hardness | Specifications Met | Color | Pkg. Qty. | Pkg. | |
Hard Fiber | |||||||||||
| No. 2 | 0.094" | 0.250" | 0.010"-0.020" | Not Rated | 230° | Rockwell R70 | __ | Black | 100 | 000000000 | 000000 |
| No. 2 | 0.094" | 0.250" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.250" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.250" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.250" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.010"-0.020" | Not Rated | 230° | Rockwell R70 | __ | Black | 100 | 000000000 | 00000 |
| No. 6 | 0.145" | 0.375" | 0.026"-0.036" | Not Rated | 230° | Rockwell R70 | __ | Black | 100 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.312" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.312" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| No. 8 | 0.172" | 0.375" | 0.026"-0.036" | Not Rated | 230° | Rockwell R70 | __ | Black | 100 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.375" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.375" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.375" | 0.042"-0.052" | Not Rated | 230° | Rockwell R70 | __ | Black | 100 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.438" | 0.041"-0.051" | Not Rated | 230° | Rockwell R70 | __ | Black | 100 | 000000000 | 00000 |
| No. 12 | 0.234" | 0.500" | 0.042"-0.052" | Not Rated | 230° | Rockwell R70 | __ | Black | 50 | 000000000 | 0000 |
| 1/4" | 0.250" | 0.375" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 1/4" | 0.250" | 0.375" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 1/4" | 0.250" | 0.500" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 1/4" | 0.250" | 0.500" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.057"-0.067" | Not Rated | 230° | Rockwell R70 | ASME B18.21.1 | Black | 25 | 000000000 | 00000 |
| 5/16" | 0.312" | 0.438" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 5/16" | 0.312" | 0.438" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 5/16" | 0.312" | 0.562" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 5/16" | 0.312" | 0.562" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 5/16" | 0.325" | 0.688" | 0.057"-0.067" | Not Rated | 230° | Rockwell R70 | __ | Black | 100 | 000000000 | 00000 |
| 3/8" | 0.375" | 0.500" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 3/8" | 0.375" | 0.500" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 3/8" | 0.375" | 0.625" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 3/8" | 0.375" | 0.625" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 3/8" | 0.375" | 2.250" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Gray | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.875" | 0.088"-0.098" | Not Rated | 230° | Rockwell R70 | __ | Black | 25 | 000000000 | 00000 |
| 7/16" | 0.438" | 0.625" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 50 | 000000000 | 0000 |
| 7/16" | 0.438" | 0.625" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 1/2" | 0.500" | 0.625" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 1/2" | 0.500" | 0.688" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 1/2" | 0.500" | 0.688" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 1/2" | 0.500" | 0.750" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 1/2" | 0.500" | 0.750" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 1/2" | 0.500" | 2.250" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Gray | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.000" | 0.088"-0.098" | Not Rated | 230° | Rockwell R70 | __ | Black | 25 | 000000000 | 00000 |
| 9/16" | 0.562" | 0.812" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 00000 |
| 9/16" | 0.562" | 0.812" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 5/8" | 0.625" | 0.750" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 5/8" | 0.625" | 0.875" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 50 | 000000000 | 0000 |
| 5/8" | 0.625" | 0.875" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 5/8" | 0.625" | 2.250" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Gray | 10 | 000000000 | 00000 |
| 5/8" | 0.645" | 1.063" | 0.088"-0.098" | Not Rated | 230° | Rockwell R70 | __ | Black | 25 | 000000000 | 00000 |
| 5/8" | 0.688" | 0.938" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 3/4" | 0.750" | 1.000" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 3/4" | 0.750" | 1.000" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 3/4" | 0.750" | 1.063" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 0000 |
| 3/4" | 0.750" | 2.250" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Gray | 10 | 000000000 | 00000 |
| 3/4" | 0.810" | 1.125" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Black | 10 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.125" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.125" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 50 | 000000000 | 0000 |
| 7/8" | 0.875" | 1.188" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 7/8" | 0.875" | 1.188" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 00000 |
| 7/8" | 0.875" | 2.250" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Gray | 10 | 000000000 | 00000 |
| 7/8" | 0.930" | 1.250" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Black | 10 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.250" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 50 | 000000000 | 0000 |
| 1" | 1.000" | 1.250" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 100 | 000000000 | 0000 |
| 1" | 1.000" | 1.250" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 00000 |
| 1" | 1.000" | 2.250" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Gray | 10 | 000000000 | 00000 |
| 1" | 1.031" | 1.312" | 0.014"-0.016" | Not Rated | 230° | Not Rated | __ | Gray | 50 | 000000000 | 0000 |
| 1" | 1.031" | 1.312" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 50 | 000000000 | 0000 |
| 1" | 1.125" | 2.000" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Black | 10 | 000000000 | 0000 |
| 1 1/4" | 1.250" | 1.625" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 50 | 000000000 | 00000 |
| 1 1/4" | 1.312" | 2.125" | 0.120"-0.130" | Not Rated | 230° | Rockwell R70 | __ | Black | 5 | 000000000 | 0000 |
| 1 1/8" | 1.188" | 1.562" | 0.028"-0.034" | Not Rated | 230° | Not Rated | __ | Red | 100 | 000000000 | 00000 |
Metric Electrical-Insulating Plastic Washers
These washers are excellent electrical insulators.
Hard fiber washers are resistant to organic solvents and petroleum-based oils.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Max. Temperature, °F | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Hard Fiber | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Black | |||||||||
| M2.5 | 2.7 | 6.5 | 0.4-0.6 | 230° | Not Rated | DIN 125 | 100 | 000000000 | 000000 |
| M3 | 3.2 | 7.0 | 0.4-0.6 | 230° | Not Rated | DIN 125 | 100 | 000000000 | 00000 |
| M4 | 4.3 | 9.0 | 0.7-0.9 | 230° | Not Rated | DIN 125 | 100 | 000000000 | 00000 |
| M6 | 6.4 | 12.5 | 1.4-1.7 | 230° | Not Rated | DIN 125 | 50 | 000000000 | 0000 |
| M8 | 8.4 | 17.0 | 1.4-1.7 | 230° | Not Rated | DIN 125 | 50 | 000000000 | 0000 |
| M10 | 10.5 | 21.0 | 1.8-2.2 | 230° | Rockwell R50 | DIN 125 | 50 | 000000000 | 00000 |
| M12 | 13.0 | 24.0 | 2.1-2.5 | 230° | Rockwell R50 | DIN 125 | 50 | 000000000 | 00000 |
| M16 | 17.0 | 30.0 | 2.1-2.5 | 230° | Rockwell R50 | DIN 125 | 25 | 000000000 | 0000 |
| M20 | 21.0 | 37.0 | 2.1-2.5 | 230° | Rockwell R50 | DIN 125 | 25 | 000000000 | 00000 |
| M24 | 25.0 | 44.0 | 2.8-3.5 | 230° | Rockwell R50 | DIN 125 | 10 | 000000000 | 0000 |
| M30 | 31.0 | 56.0 | 2.8-3.6 | 230° | Rockwell R50 | DIN 125 | 10 | 000000000 | 00000 |
Abrasion-Resistant Cushioning Washers
These SBR rubber washers are reinforced with cloth fibers to resist wear from rubbing and scraping surfaces. Use them to cushion joints and damp vibration.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Max. Temperature, °F | Hardness | Color | Pkg. Qty. | Pkg. | |
Polyester Fiber-Filled SBR Rubber | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. 10 | 0.188" | 0.562" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 00000 |
| 1/4" | 0.250" | 0.750" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 1/4" | 0.250" | 1.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 3/8" | 0.375" | 1.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 3/8" | 0.375" | 1.500" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 3/8" | 0.375" | 2.250" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 1/2" | 0.500" | 1.375" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 1/2" | 0.500" | 2.250" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 1/2" | 0.500" | 3.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 5 | 000000000 | 0000 |
| 5/8" | 0.625" | 1.750" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 5/8" | 0.625" | 2.250" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 5/8" | 0.625" | 3.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 5 | 000000000 | 0000 |
| 3/4" | 0.750" | 2.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 3/4" | 0.750" | 2.250" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 3/4" | 0.750" | 3.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 5 | 000000000 | 0000 |
| 7/8" | 0.875" | 2.250" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 7/8" | 0.875" | 3.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 5 | 000000000 | 0000 |
| 1" | 1.000" | 2.250" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 1" | 1.000" | 2.500" | 0.110"-0.140" | 170° | Durometer 70A | Black | 10 | 000000000 | 0000 |
| 1" | 1.000" | 3.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 5 | 000000000 | 0000 |
| 1 1/2" | 1.500" | 2.500" | 0.110"-0.140" | 170° | Durometer 70A | Black | 5 | 000000000 | 0000 |
| 1 1/2" | 1.500" | 3.000" | 0.110"-0.140" | 170° | Durometer 70A | Black | 5 | 000000000 | 0000 |
Cushioning Washers
These wool felt washers can be soaked with oil to lubricate joints. Use them to cushion joints and damp vibration.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | Min. | Max. | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Wool Felt | ||||||||||
| No. 6 | 0.138" | 0.250" | 0.175"-0.201" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 00000 |
| No. 8 | 0.164" | 0.313" | 0.175"-0.201" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 0000 |
| No. 10 | 0.190" | 0.375" | 0.175"-0.201" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 0000 |
| No. 10 | 0.190" | 0.563" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 0000 |
| No. 12 | 0.216" | 0.438" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 0000 |
| 1/4" | 0.250" | 0.500" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 0000 |
| 1/4" | 0.250" | 0.750" | 0.230"-0.270" | -80° | 200° | Gray | __ | 25 | 000000000 | 00000 |
| 1/4" | 0.250" | 1.000" | 0.413"-0.463" | -80° | 200° | Gray | __ | 10 | 000000000 | 0000 |
| 5/16" | 0.312" | 0.563" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 5 | 000000000 | 0000 |
| 3/8" | 0.375" | 0.625" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 50 | 000000000 | 00000 |
| 3/8" | 0.375" | 1.000" | 0.230"-0.270" | -80° | 200° | Gray | __ | 25 | 000000000 | 00000 |
| 3/8" | 0.375" | 1.500" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 25 | 000000000 | 00000 |
| 1/2" | 0.500" | 1.000" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 25 | 000000000 | 0000 |
| 1/2" | 0.500" | 1.250" | 0.230"-0.270" | -80° | 200° | Gray | __ | 25 | 000000000 | 00000 |
| 1/2" | 0.500" | 1.500" | 0.230"-0.270" | -80° | 200° | Gray | __ | 10 | 000000000 | 0000 |
| 5/8" | 0.625" | 1.750" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 15 | 000000000 | 0000 |
| 3/4" | 0.750" | 1.250" | 0.230"-0.270" | -80° | 200° | Gray | __ | 25 | 000000000 | 00000 |
| 3/4" | 0.750" | 2.000" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 15 | 000000000 | 00000 |
| 7/8" | 0.875" | 2.250" | 0.236"-0.264" | -80° | 200° | Gray | SAE J314 | 10 | 000000000 | 0000 |
| 1" | 1.000" | 2.000" | 0.475"-0.525" | -80° | 200° | Gray | __ | 5 | 000000000 | 0000 |
| 1" | 1.000" | 2.500" | 0.481"-0.519" | -80° | 200° | Gray | SAE J314 | 5 | 000000000 | 0000 |
| 1 1/4" | 1.250" | 3.000" | 0.481"-0.519" | -80° | 200° | Gray | SAE J314 | 5 | 000000000 | 00000 |
| 1 1/2" | 1.500" | 2.500" | 0.481"-0.519" | -80° | 200° | Gray | SAE J314 | 5 | 000000000 | 0000 |
| 1 1/2" | 1.500" | 3.000" | 0.481"-0.519" | -80° | 200° | Gray | SAE J314 | 5 | 000000000 | 00000 |