| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| NSN | 3110001091265 | Direct Cross Interchange | 27 |
| SKF | 7321G | Direct Cross Interchange | 27 |
| SKF | 7321BG | Direct Cross Interchange | 27 |
| FAG | 7321BUO | Direct Cross Interchange | 27 |
| FEDERAL | DB7321 | Direct Cross Interchange | 27 |
| FEDERAL | 7321DT | Direct Cross Interchange | 27 |
| FEDERAL | 7321DF | Direct Cross Interchange | 27 |
| FEDERAL | 7321DB | Direct Cross Interchange | 27 |
| MCGILL | 7321D | Direct Cross Interchange | 27 |
| MRC | 7321PDT | Direct Cross Interchange | 27 |
| MRC | 7321PDF | Direct Cross Interchange | 27 |
| MRC | 7321PDB | Direct Cross Interchange | 27 |
| MRC | 7321PD | Direct Cross Interchange | 27 |
| FAFNIR | 7321WOSU | Direct Cross Interchange | 27 |
| FAFNIR | 7321WNMBRSU | Direct Cross Interchange | 27 |
| FAFNIR | 7321PWSU | Direct Cross Interchange | 27 |
| FAFNIR | 7321PWDU | Direct Cross Interchange | 27 |
| NDH | U30321 | Direct Cross Interchange | 27 |
| NDH | 30321DT | Direct Cross Interchange | 27 |
| NDH | 30321DF | Direct Cross Interchange | 27 |
| NDH | 30321DB | Direct Cross Interchange | 27 |
| NDH | 20321DT | Direct Cross Interchange | 27 |
| NDH | 20321DF | Direct Cross Interchange | 27 |
| NDH | 20321DB | Direct Cross Interchange | 27 |
| RHP | 7321BDU | Direct Cross Interchange | 27 |