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![]() | White |
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About Washers
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Electrical-Insulating Sleeve Washers

Also known as shoulder or insulator washers, these nonmetal washers block electrical current and prevent galvanic corrosion from mating different types of metal.
PTFE washers have excellent chemical resistance and a slippery surface that resists wear in high-friction applications.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||||
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For Screw Size | ID | OD | Sleeve OD | Thick. | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
PTFE Plastic | ||||||||||||
No. 2 | 0.091" | 0.312" | 0.125" | 0.063" | 0.125" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
No. 4 | 0.115" | 0.200" | 0.136" | 0.030" | 0.060" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
No. 6 | 0.140" | 0.312" | 0.187" | 0.023" | 0.062" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
No. 8 | 0.169" | 0.375" | 0.265" | 0.049" | 0.094" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
No. 10 | 0.193" | 0.375" | 0.252" | 0.032" | 0.064" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
1/4" | 0.260" | 0.545" | 0.355" | 0.049" | 0.094" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
3/8" | 0.385" | 0.750" | 0.500" | 0.060" | 0.120" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |