| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| SRO | NU321 | Direct Cross Interchange | 47 |
| FAG | NU321 | Direct Cross Interchange | 47 |
| Aetna Bearing | L1321KR | Direct Cross Interchange | 47 |
| ZVL-ZKL | NU321B | Direct Cross Interchange | 47 |
| SNR | NU321M | Direct Cross Interchange | 47 |
| R&M | MMRJ105 | Direct Cross Interchange | 47 |
| SNR | NU321B | Direct Cross Interchange | 47 |
| IMPEXMETAL | NU321 | Direct Cross Interchange | 47 |
| SNR | NU321 | Direct Cross Interchange | 47 |
| ROLLWAY | MUC321 | Direct Cross Interchange | 47 |
| ROLLWAY | E1321UMR | Direct Cross Interchange | 47 |
| ROLLWAY | E1321B | Direct Cross Interchange | 47 |
| ROLLWAY | E13211321B | Direct Cross Interchange | 47 |
| RIV | 22DBVP | Direct Cross Interchange | 47 |
| TORRINGTON | 105RU03 | Direct Cross Interchange | 47 |
| ABMA | 105RU03 | Direct Cross Interchange | 47 |
| ABMA | 105RM03 | Direct Cross Interchange | 47 |
| MRC | MR321E | Direct Cross Interchange | 47 |
| LINK BELT | NU321E | Direct Cross Interchange | 47 |
| LINK BELT | MA1321EX | Direct Cross Interchange | 47 |
| NDH | A1321WBHC | Direct Cross Interchange | 47 |
| NDH | A1321TS | Direct Cross Interchange | 47 |
| NDH | A13211321WBHC | Direct Cross Interchange | 47 |
| NDH | A13211321WB | Direct Cross Interchange | 47 |
| NDH | A13211321TS | Direct Cross Interchange | 47 |
| RHP | NU321 | Direct Cross Interchange | 47 |
| RHP | B3021SP | Direct Cross Interchange | 47 |
| RHP | B3021NA | Direct Cross Interchange | 47 |
| SKF | NUM321 | Direct Cross Interchange | 47 |
| SKF | NU321M | Direct Cross Interchange | 47 |
| SKF | NU321E | Direct Cross Interchange | 47 |
| SKF | NU321 | Direct Cross Interchange | 47 |
| NTN | NU321G1 | Direct Cross Interchange | 47 |
| NTN | NU321 | Direct Cross Interchange | 47 |
| STEYR | NU321 | Direct Cross Interchange | 47 |
| NSK-RHP | NU321 | Direct Cross Interchange | 47 |
| Fafnir Bearing | NUM105 | Direct Cross Interchange | 47 |
| NACHI | NU321 | Direct Cross Interchange | 47 |
| ZVL-ZKL | NU321 | Direct Cross Interchange | 47 |
| GPZ | 32321 | Direct Cross Interchange | 47 |
| KOYO | NU321 | Direct Cross Interchange | 47 |
| HOFFMANN | R405E | Direct Cross Interchange | 47 |
| SCHEERER | RU321 | Direct Cross Interchange | 47 |
| FAG | NU321M | Direct Cross Interchange | 47 |
| Norma-Hoffmann | R405E | Direct Cross Interchange | 47 |