System of Measurement System of Measurement |
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Thickness Thickness |
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Material Material |
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For Screw Size For Screw Size |
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ID ID |
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OD OD |
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Washer Type Washer Type |
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 | Flat |
Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Specifications Met Specifications Met |
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Filler Material Filler Material |
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About Washers
More
High-Temperature Plastic Washers
These are among the most heat resistant plastic washers we carry. All have good chemical resistance.
PEEK washers have excellent tensile strength for high-stress applications. Carbon-filled PEEK washers are stronger and more moisture resistant than PEEK washers.
Polyimide washers are better electrical insulators than PEEK washers.
Ultem PEI washers are flame retardant, UV stable, and can be used outdoors. They also offer excellent electrical-insulating properties.
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 | Choose a Color | Pkg. Qty. | Pkg. | |
PEEK Plastic | |||||||||||
| No. 0 | 0.078" | 0.188" | 0.016"-0.025" | -50° | 500° | Rockwell M103 | ASME B18.21.1 | Beige | 10 | 000000000 | 00000 |
| No. 0 | 0.078" | 0.188" | 0.016"-0.025" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.250" | 0.016"-0.025" | -50° | 500° | Rockwell M103 | ASME B18.21.1 | Beige | 10 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.250" | 0.016"-0.025" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.313" | 0.025"-0.040" | -50° | 500° | Rockwell M103 | ASME B18.21.1 | Beige | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.313" | 0.025"-0.040" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 5 | 0.141" | 0.350" | 0.036"-0.045" | -50° | 500° | Rockwell M103 | __ | Beige | 10 | 000000000 | 0000 |
| No. 5 | 0.141" | 0.350" | 0.036"-0.045" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 6 | 0.150" | 0.380" | 0.020"-0.060" | -50° | 500° | Rockwell M103 | __ | Beige | 10 | 000000000 | 0000 |
| No. 8 | 0.190" | 0.440" | 0.020"-0.060" | -50° | 500° | Rockwell M103 | __ | Beige | 10 | 000000000 | 0000 |
| No. 10 | 0.220" | 0.510" | 0.020"-0.060" | -50° | 500° | Rockwell M103 | __ | Beige | 10 | 000000000 | 0000 |
| No. 10 | 0.220" | 0.510" | 0.020"-0.060" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | -50° | 500° | Rockwell M103 | ASME B18.21.1 | Beige | 10 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| 1/4" | 0.280" | 0.630" | 0.040"-0.080" | -50° | 500° | Rockwell M103 | __ | Beige | 10 | 000000000 | 0000 |
| 1/4" | 0.280" | 0.630" | 0.040"-0.080" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| 5/16" | 0.340" | 0.690" | 0.040"-0.080" | -50° | 500° | Rockwell M103 | __ | Beige | 10 | 000000000 | 0000 |
| 5/16" | 0.343" | 0.688" | 0.040"-0.080" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.064"-0.104" | -50° | 500° | Rockwell M103 | __ | Beige | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.064"-0.104" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 7/16" | 0.469" | 1.250" | 0.064"-0.104" | -50° | 500° | Rockwell M103 | __ | Beige | 5 | 000000000 | 0000 |
| 7/16" | 0.469" | 1.250" | 0.064"-0.104" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.375" | 0.064"-0.104" | -50° | 500° | Rockwell M103 | __ | Beige | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.375" | 0.064"-0.104" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.469" | 0.074"-0.121" | -50° | 500° | Rockwell M103 | __ | Beige | 1 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.469" | 0.074"-0.121" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.750" | 0.074"-0.121" | -50° | 500° | Rockwell M103 | __ | Beige | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.750" | 0.074"-0.121" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.108"-0.160" | -50° | 500° | Rockwell M103 | __ | Beige | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.108"-0.160" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.108"-0.160" | -50° | 500° | Rockwell M103 | __ | Beige | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.108"-0.160" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.108"-0.150" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.108"-0.160" | -50° | 500° | Rockwell M103 | __ | Beige | 1 | 000000000 | 0000 |
Carbon-Filled PEEK Plastic | |||||||||||
| No. 0 | 0.078" | 0.188" | 0.016"-0.025" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.250" | 0.016"-0.025" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.313" | 0.025"-0.040" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 6 | 0.150" | 0.380" | 0.036"-0.065" | -50° | 500° | Rockwell M103 | __ | Black | 10 | 000000000 | 0000 |
| No. 8 | 0.190" | 0.440" | 0.036"-0.065" | -50° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 10 | 0.220" | 0.510" | 0.036"-0.065" | -50° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| 1/4" | 0.280" | 0.630" | 0.051"-0.080" | -50° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 5/16" | 0.340" | 0.690" | 0.064"-0.104" | -50° | 500° | Rockwell M103 | __ | Black | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.064"-0.104" | -50° | 500° | Rockwell M103 | __ | Black | 5 | 000000000 | 0000 |
| 7/16" | 0.469" | 1.250" | 0.064"-0.104" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.375" | 0.064"-0.104" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 5 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.469" | 0.074"-0.121" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.108"-0.160" | -20° | 500° | Rockwell M103 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
Polyimide Plastic | |||||||||||
| No. 0 | 0.062" | 0.219" | 0.005"-0.006" | -420° | 450° | Not Rated | __ | Orange | 10 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.250" | 0.005"-0.006" | -420° | 450° | Not Rated | __ | Orange | 10 | 000000000 | 0000 |
| No. 3 | 0.101" | 0.250" | 0.005"-0.006" | -420° | 450° | Not Rated | __ | Orange | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.005"-0.006" | -420° | 450° | Not Rated | __ | Orange | 10 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.005"-0.006" | -420° | 450° | Not Rated | __ | Orange | 10 | 000000000 | 0000 |
| No. 8 | 0.196" | 0.500" | 0.005"-0.006" | -420° | 450° | Not Rated | __ | Orange | 10 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.625" | 0.005"-0.006" | -420° | 450° | Not Rated | __ | Orange | 10 | 000000000 | 0000 |
Ultem PEI Plastic | |||||||||||
| No. 4 | 0.125" | 0.313" | 0.025"-0.040" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | 10 | 000000000 | 0000 | |
| No. 5 | 0.141" | 0.350" | 0.036"-0.045" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | 10 | 000000000 | 0000 | |
| No. 6 | 0.156" | 0.375" | 0.020"-0.060" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | 10 | 000000000 | 0000 | |
| No. 8 | 0.188" | 0.438" | 0.020"-0.060" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | 10 | 000000000 | 0000 | |
| No. 10 | 0.218" | 0.500" | 0.020"-0.060" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | 10 | 000000000 | 0000 | |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.040"-0.080" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| 5/16" | 0.343" | 0.688" | 0.060"-0.100" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.060"-0.100" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 7/16" | 0.469" | 1.250" | 0.051"-0.080" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.375" | 0.064"-0.104" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 5 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.750" | 0.074"-0.121" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.108"-0.160" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.108"-0.160" | -30° | 450° | Rockwell M114 | ASME B18.21.1 | Black | 1 | 000000000 | 0000 |