| Item | Part No. | Part Name | Qty | Serial No. |
| 451-633 | CONTROL VALVE | 7001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-01A0A T0 Y1660-20A0A . | ||||
| 1 | SPOOL | 7001- | ||
| 2 | SPOOL | 7001- | ||
| 3 | SPOOL | 7001- | ||
| 4 | SPOOL | 7001- | ||
| 5 | SPOOL | 7001- | ||
| 6 | SPOOL | 7001- | ||
| 7 | SPOOL | 7001- | ||
| 8 | SPOOL | 7001- | ||
| 9 | PLUG | 7001- | ||
| 10 | PLUG | 7001- | ||
| 11 | PLUG | 7001- | ||
| 12 | PLUG | 7001- | ||
| 13 | 450-717 | PLUG | 7001- | |
| 14 | 450-716 | PLUG | 7001- | |
| 15 | 450-715 | PLUG | 7001- | |
| 16 | 453-559 | O-RING | 7001- | |
| 17 | SPRING | 7001- | ||
| 18 | POPPET | 7001- |