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Engineering Plastic Washers & Bushings
Description
Plastic washers and bushings for general engineering use where lightweight, corrosion resistance and electrical insulation are required. Material options may be selected to match the operating environment and temperature requirements.
Washers
Washer used between the connecting part and nut, acting as a spacer to protect the surface from wear and to help reduce loosening under vibration.
| Metric | Outer Diameter O.D. (mm) | Inner Diameter I.D. (mm) | Thickness T (mm) |
|---|---|---|---|
| M3 | 7.00 | 3.20 | 0.50 |
| M4 | 9.00 | 4.30 | 0.80 |
| M5 | 10.00 | 5.30 | 1.00 |
| M6 | 12.50 | 6.40 | 1.60 |
| M8 | 17.00 | 8.40 | 1.60 |
| M10 | 21.00 | 10.50 | 2.00 |
| M12 | 24.00 | 13.00 | 2.50 |
Bushings
Plastic bushings are used to protect mating parts from wear during long-term rotation. Material selection may be made to suit requirements such as self-lubrication, wear resistance, or higher strength.
| d (I.D. / mm) | D (O.D. / mm) | L (Length / mm) |
|---|---|---|
| 2.1 | 4 | 1.5 |
| 4.2 | 4 | 1.5 |
| 4.4 | 4 | 1.5 |
| 4.8 | 5 | 2 |
| 5 | 6 | 3 |
| 6 | 7 | 4 |
| 6 | 8 | 5 |
| 8 | 9 | 6 |
| 8 | 11 | 7 |
| 8 | 12 | 8 |
| 10 | 13 | 9 |
| 10 | 14 | 10 |
| 30 | 20 | 15 |
| 15 | 23 | 17 |
| 50.5 | 40 | 20 |
| 20 | 28 | 22 |
| 30 | 36 | 30 |
| 50 | 50.5 | 35.2 |
| 50 | 70.5 | 50.2 |
| 70 | 85.5 | 65.2 |
| 80 | 100 | 80.2 |
| Document No.: DS-PLASTIC-WASHERS-BUSHINGS | Revision: 01 | Date of Issue: 20 December 2025 |
