| Item | Part No. | Part Name | Qty | Serial No. |
| (723-48-27503) | CONTROL VALVE | 21050- | ||
| (723-48-27502) | CONTROL VALVE | 20828-21049 | ||
| (723-48-27501) | CONTROL VALVE | 20500-20827 | ||
| (723-48-27500) | CONTROL VALVE | 20001-20499 | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 T0 Y1664-23A0. | ||||
| 1 | 723-40-92401 | VALVE ASS'Y,RELIEF | 20001- | |
| 2 | 700-22-11410 | O-RING | 20001- | |
| 3 | 700-80-64220 | RING,BACK-UP | 20001- | |
| 4 | 07002-12434 | O-RING | 20001- |