| Manufacturer | Part Number |
|---|---|
| SNR | NU303 |
| Fiat | 810233 |
| Steyr-Daimler-Puch | A0019819601/8000 |
| Marlin-Rockwell Corp. | MR303E |
| RHP | NU303 |
| SKF | NU303-EC P (SKF) |
| GPZ Bearings | 32303 |
| Fiat | 2/810233/0 |
| ZF | 0635410164 |
| SKF | NU303 (SKF) |
| Fiat | 28102330 |
| Steyr-Daimler-Puch | 0019819601 |
| KOYO | NU303 |
| SKC | 9152014 |
| RIV Officine di Villar Perosa | 4DBVP |
