| 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 | \6\ | BLOCK | H50051- | |
| 2 | \6\ | BLOCK | H50051- | |
| 3 | \6\ | BLOCK | H50051- | |
| 4 | \6\ | BLOCK | H50051- | |
| 5 | \6\ | BLOCK | H50051- | |
| 6 | \6\ | BLOCK | H50051- | |
| 7 | 144-14-54610 | O-RING | H50051- | |
| 8 | 723-56-31720 | O-RING | H50051- | |
| 9 | 723-56-31730 | O-RING | H50051- | |
| 10 | 702-75-11520 | O-RING | H50051- | |
| 11 | 07000-12012 | O-RING | H50051- | |
| 12 | 07000-11008 | O-RING | H50051- |