| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| TIMKEN | 439R | Direct Cross Interchange | 1 |
| TIMKEN | 439PKG | Direct Cross Interchange | 1 |
| FEDERAL MOGUL | 439PKG | Direct Cross Interchange | 1 |
| Precision Seals & Bearings | 439PKG | Indirect Cross Interchange | 3 |
| NATIONAL | 439PKG | Indirect Cross Interchange | 2 |