แหวนล็อคนอก (External Retaining Ring)
| ขนาด | วัดใน | หนา |
|---|---|---|
| 4 | 3.8 | 0.4 |
| 5 | 4.8 | 0.6 |
| 6 | 5.6 | 0.7 |
| 7 | 6.5 | 0.8 |
| 8 | 7.4 | 0.8 |
| 9 | 8.4 | 1.0 |
| 10 | 9.3 | 1.0 |
| 11 | 10.2 | 1.0 |
| 12 | 11.1 | 1.0 |
| 13 | 12.0 | 1.0 |
| 14 | 12.9 | 1.0 |
| 15 | 13.8 | 1.0 |
| 16 | 14.7 | 1.0 |
| 17 | 15.7 | 1.0 |
| 18 | 16.5 | 1.2 |
| 19 | 17.5 | 1.2 |
| 20 | 18.5 | 1.2 |
| 21 | 19.5 | 1.2 |
| 22 | 20.5 | 1.2 |
| 23 | 21.4 | 1.2 |
| 24 | 22.2 | 1.2 |
| 25 | 23.2 | 1.2 |
