| Numero di parte | Dimensione (millimetro) | |||
| D | D | B | C | |
| NART5UUR | 16 | 5 | 12 | 11 |
| NART6UUR | 19 | 6 | 12 | 11 |
| NART8UUR | 24 | 8 | 15 | 14 |
| NART10UUR | 30 | 10 | 15 | 14 |
| NART12UUR | 32 | 12 | 15 | 14 |
| NART15UUR | 35 | 15 | 19 | 18 |
| NART17UUR | 40 | 17 | 21 | 20 |
| NART20UUR | 47 | 20 | 25 | 24 |
| NART25UUR | 52 | 25 | 25 | 24 |
| NART30UUR | 62 | 30 | 29 | 28 |
| NART35UUR | 72 | 35 | 29 | 28 |
| NART40UUR | 80 | 40 | 32 | 30 |
| NART45UUR | 85 | 45 | 32 | 30 |
| NART50UUR | 90 | 50 | 32 | 30 |
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