| Item | Part No. | Part Name | Qty | Serial No. |
| 451-645 | CONTROL VALVE | 6001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 T0 Y1664-21A0. | ||||
| 1 | SPOOL | 6001- | ||
| 2 | SPOOL | 6001- | ||
| 3 | SPOOL | 6001- | ||
| 4 | SPOOL | 6001- | ||
| 5 | SPOOL | 6001- | ||
| 6 | SPOOL | 6001- | ||
| 7 | SPOOL | 6001- | ||
| 8 | SPOOL | 6001- |