| Item | Part No. | Part Name | Qty | Serial No. |
| (723-13-12201) | CONTROL VALVE | 50501- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1663-01A0 T0 Y1663-06A0. | ||||
| 1 | 723-10-11301 | VALVE ASS'Y,RELIEF | 50501- | |
| 2 | 700-80-64220 | RING | 50501- | |
| 3 | 700-22-11410 | O-RING | 50501- | |
| 4 | 709-25-11390 | O-RING | 50501- |