| 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 | 451-262 | CASE,SPRING | 6001- | |
| 2 | 456-680 | BOLT | 6001- | |
| 3 | 450-919 | RETAINER | 6001- | |
| 4 | 450-917 | RETAINER | 6001- | |
| 5 | 453-783 | SPRING | 6001- | |
| 6 | 453-601 | O-RING | 6001- | |
| 7 | 456-598 | BOLT | 6001- | |
| 8 | 451-265 | CASE,SPRING | 6001- | |
| 9 | 451-266 | CASE,SPRING | 6001- | |
| 10 | 450-921 | RETAINER | 6001- | |
| 11 | 456-595 | BOLT | 6001- | |
| 12 | 451-267 | CASE,SPRING | 6001- | |
| 13 | 451-261 | CASE,SPRING | 6001- | |
| 14 | 456-594 | BOLT | 6001- | |
| 15 | 451-259 | CASE,SPRING | 6001- | |
| 16 | 456-100 | SEAL | 6001- | |
| 17 | 454-719 | PLATE | 6001- | |
| 18 | 450-916 | RETAINER | 6001- | |
| 19 | 455-181 | WASHER | 6001- | |
| 20 | 456-593 | BOLT | 6001- | |
| 21 | 453-785 | SPRING | 6001- | |
| 22 | 453-784 | SPRING | 6001- | |
| 23 | 454-721 | PLATE | 6001- | |
| 24 | 456-800 | BOLT | 6001- |