| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| FEDERAL | RW506A | Direct Cross Interchange | 14 |
| L&S Bearing | RW506A | Direct Cross Interchange | 14 |
| L&S Bearing | RW506 | Direct Cross Interchange | 14 |
| ABC | RW506A | Direct Cross Interchange | 13 |
| ABC | RW506 | Direct Cross Interchange | 13 |
| NDH | RW506A | Direct Cross Interchange | 11 |
| GREEN | RW506A | Direct Cross Interchange | 11 |
| BCA | RW506A | Direct Cross Interchange | 11 |
| ACDelco | RW506A | Direct Cross Interchange | 11 |
| Precision Seals & Bearings | RW506AR | Direct Cross Interchange | 8 |
| DT Components | RW506AR | Direct Cross Interchange | 8 |
| TIMKEN | RW506AR | Direct Cross Interchange | 7 |
| MRC | RW613R | Indirect Cross Interchange | 3 |
| McQuay-Norris | BB506RWA | Indirect Cross Interchange | 3 |
| SKF | RW506R | Indirect Cross Interchange | 3 |
| SKF | RW506AR | Indirect Cross Interchange | 3 |
| FEDERAL MOGUL | RW506AR | Indirect Cross Interchange | 3 |
| GM | 907370 | Indirect Cross Interchange | 3 |
| GM | 907279 | Indirect Cross Interchange | 3 |
| L&S Bearing | RW506AR | Indirect Cross Interchange | 2 |
| ABC | RW506AR | Indirect Cross Interchange | 2 |
| GREEN | RW506AR | Indirect Cross Interchange | 2 |
| PERFECT CIRCLE | RW506AR | Indirect Cross Interchange | 2 |
| FEDERAL | RW506AR | Indirect Cross Interchange | 2 |
| CHICAGO RAWHIDE | RW506AR | Indirect Cross Interchange | 2 |
| New Departure | RW506AR | Indirect Cross Interchange | 2 |
| New Departure | RW506A | Indirect Cross Interchange | 2 |
| New Departure | 907279 | Indirect Cross Interchange | 2 |
| Fafnir Bearing | RW506AR | Indirect Cross Interchange | 2 |