| No | Identificazione | O. D | W. P | B. P. | ||||||
| pollice | (millimetro) | tolleranza (millimetro) | pollice | (millimetro) | tolleranza (millimetro) | Barra | PSI | Barra | PSI | |
| 1 | 7/32 | 5.5 | ± 0.2 | 29/64 | 11.5 | ± 0.3 | 35 | 500 | 175 | 2500 |
| 2 | 7/32 | 5.5 | ± 0.2 | 29/64 | 11.5 | ± 0.3 | 42 | 600 | 210 | 3000 |
| 3 | 7/32 | 5.5 | ± 0.2 | 29/64 | 11.5 | ± 0.3 | 56 | 800 | 280 | 4000 |
| 4 | 3/8 | 9.5 | ± 0.4 | 11/16 | 17.5 | ± 0.5 | 32 | 465 | 128 | 1860 |