| Item | Part No. | Part Name | Qty | Serial No. |
| 419-64-25400 | VALVE ASS'Y,PRIORITY | 53001- | ||
| 1 | 419-64-25410 | HOUSING | 53001- | |
| 2 | 419-64-25420 | SPOOL ASS'Y | 53001- | |
| 3 | 419-64-25530 | SPRING | 53001- | |
| 4 | 419-64-25430 | VALVE ASS'Y | 53001- | |
| 5 | 419-64-15450 | O-RING | 53001- | |
| 6 | 419-64-15460 | PLUG | 53001- | |
| 7 | 419-64-15470 | O-RING | 53001- | |
| 8 | 419-64-25440 | PLUG | 53001- |