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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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size  | ID | OD | Thick. | Min. | Max. | Specifications Met | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | ||||||||||
MS51859 | ||||||||||
| No. 0 | 0.068" | 0.203" | 0.016" to 0.024" | Not Rated | 180° | MS51859-11 | White | 50 | 000000000 | 000000 |
| No. 1 | 0.079" | 0.162" | 0.016" to 0.024" | Not Rated | 180° | MS51859-12 | White | 50 | 000000000 | 00000 |
| No. 2 | 0.098" | 0.203" | 0.025" to 0.035" | Not Rated | 180° | MS51859-1 | White | 50 | 000000000 | 00000 |
| No. 2 | 0.098" | 0.260" | 0.011" to 0.021" | Not Rated | 180° | MS51859-13 | White | 100 | 000000000 | 00000 |
| No. 4 | 0.127" | 0.297" | 0.031" to 0.049" | Not Rated | 180° | MS51859-2 | White | 250 | 000000000 | 00000 |
| No. 4 | 0.127" | 0.350" | 0.025" to 0.035" | Not Rated | 180° | MS51859-14 | White | 100 | 000000000 | 00000 |
| No. 6 | 0.160" | 0.328" | 0.031" to 0.049" | Not Rated | 180° | MS51859-3 | White | 100 | 000000000 | 00000 |
| No. 8 | 0.192" | 0.406" | 0.031" to 0.065" | Not Rated | 180° | MS51859-4 | White | 100 | 000000000 | 00000 |
| No. 10 | 0.225" | 0.469" | 0.031" to 0.065" | Not Rated | 180° | MS51859-5 | White | 100 | 000000000 | 00000 |
| 1/4" | 0.290" | 0.572" | 0.056" to 0.070" | Not Rated | 180° | MS51859-17 | White | 50 | 000000000 | 00000 |
| 1/4" | 0.290" | 0.688" | 0.040" to 0.065" | Not Rated | 180° | MS51859-6 | White | 50 | 000000000 | 00000 |
| 1/4" | 0.290" | 0.890" | 0.025" to 0.035" | Not Rated | 180° | MS51859-18 | White | 50 | 000000000 | 00000 |
| 5/16" | 0.355" | 0.708" | 0.040" to 0.065" | Not Rated | 180° | MS51859-7 | White | 50 | 000000000 | 0000 |
| 3/8" | 0.420" | 0.832" | 0.040" to 0.065" | Not Rated | 180° | MS51859-8 | White | 50 | 000000000 | 00000 |
| 7/16" | 0.484" | 0.942" | 0.040" to 0.065" | Not Rated | 180° | MS51859-9 | White | 25 | 000000000 | 00000 |
| 1/2" | 0.546" | 1.082" | 0.040" to 0.065" | Not Rated | 180° | MS51859-10 | White | 10 | 000000000 | 0000 |
| 1/2" | 0.546" | 1.630" | 0.015" to 0.025" | Not Rated | 180° | MS51859-22 | White | 10 | 000000000 | 0000 |
Water- and Steam-Resistant Plastic Washers
Low moisture absorption and good heat resistance make these washers suitable for wet and harsh environments. All are good electrical insulators.
Fiberglass washers are stronger than Delrin® acetal plastic washers and have excellent resistance to salt water. Color ranges from light green to light tan.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Max. Temperature, °F | Hardness | Specifications Met | Color | Pkg. Qty. | Pkg. | |
Fiberglass | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. 0 | 0.062" | 0.188" | 0.012" to 0.018" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| No. 0 | 0.062" | 0.250" | 0.012" to 0.018" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 1 | 0.094" | 0.250" | 0.012" to 0.018" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 3 | 0.105" | 0.250" | 0.024" to 0.038" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.438" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 5 | 0.140" | 0.375" | 0.024" to 0.038" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 5 | 0.140" | 0.438" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.024" to 0.038" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.438" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.500" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.562" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| No. 12 | 0.234" | 0.625" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 0000 |
| 1/4" | 0.265" | 0.625" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 1/4" | 0.265" | 1.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 3/8" | 0.390" | 0.625" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.250" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 5 | 000000000 | 00000 |
| 3/8" | 0.411" | 0.625" | 0.056" to 0.071" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 5 | 000000000 | 0000 |
| 7/16" | 0.458" | 0.750" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 7/16" | 0.458" | 0.875" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 7/16" | 0.458" | 1.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 1/2" | 0.536" | 1.000" | 0.056" to 0.071" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 5 | 000000000 | 0000 |
| 1/2" | 0.562" | 1.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 10 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.250" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 5 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.750" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.062" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 5 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.500" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.750" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 7/8" | 0.890" | 1.500" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 7/8" | 0.890" | 2.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 1" | 1.062" | 1.750" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 1 1/8" | 1.140" | 2.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 1 1/8" | 1.140" | 2.500" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 1 1/4" | 1.328" | 2.000" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
| 1 1/4" | 1.328" | 2.500" | 0.054" to 0.070" | 280° | Rockwell M100 | MIL-I-24768/27 | Light Green | 1 | 000000000 | 0000 |
PEEK Unthreaded Spacers
Use PEEK spacers as an alternative to metal spacers in high-temperature, high-stress applications. They resist chemicals, wear, and moisture.
For technical drawings and 3-D models, click on a part number.
| Lg. | For Screw Size | ID | Temperature Range, °F | Color | Specifications Met | Each | |
3/8" OD | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 000000 |
| 3/8" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1/2" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 5/8" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 3/4" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 7/8" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 1/4" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 1/2" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 3/4" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 2" | No. 10 | 0.192" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
1/2" OD | |||||||
| 1/4" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 3/8" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1/2" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 5/8" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 3/4" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 7/8" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 1/4" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 1/2" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 3/4" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 2" | 1/4" | 0.252" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
3/4" OD | |||||||
| 1/4" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 3/8" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1/2" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 5/8" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 3/4" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 7/8" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 1/4" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 1/2" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 1 3/4" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 2" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 2 1/4" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |
| 2 1/2" | 3/8" | 0.380" | -40° to 480° | Beige | ASTM D4000; MIL-P-46183 Type 1 | 000000000 | 00000 |