| Item | Part No. | Part Name | Qty | Serial No. |
| (723-18-15800) | CONTROL VALVE | 20001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 T0 Y1660-14A0. | ||||
| 1 | 723-10-12400 | VALVE ASS'Y,RELIEF | 20001- | |
| 2 | 700-80-64220 | RING | 20001- | |
| 3 | 700-22-11410 | O-RING | 20001- | |
| 4 | 709-25-11390 | O-RING | 20001- |