| Item | Part No. | Part Name | Qty | Serial No. |
| (723-59-18300) | VALVE ASSEMBLY, 9-SPOOL | H50051- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS. Y1666-01A0 TO Y1666-09A0 | ||||
| 1 | 723-40-85100 | VALVE ASSEMBLY | H50051- | |
| 2 | 709-25-11390 | O-RING | H50051- | |
| 3 | 723-90-61500 | VALVE ASSEMBLY | H50051- | |
| 4 | 709-25-11390 | O-RING | H50051- |