| Item | Part No. | Part Name | Qty | Serial No. |
| 417-64-25300 | VALVE ASS'Y,PRIORITY | 50001- | ||
| 1 | 416-64-15210 | HOUSING | 50001- | |
| 2 | 417-64-25310 | SPOOL | 50001- | |
| 3 | 416-64-15230 | SPRING | 50001- | |
| 4 | 416-64-15250 | PLUG | 50001- | |
| 5 | 416-64-15270 | PLUG | 50001- | |
| 6 | 416-64-15260 | O-RING | 50001- | |
| 7 | 417-64-25330 | VALVE ASS'Y | 50001- | |
| 8 | 417-64-25320 | O-RING | 50001- |