| Item | Part No. | Part Name | Qty | Serial No. |
| (723-56-16401) | CONTROL VALVE | 20136- | ||
| (723-56-16400) | CONTROL VALVE | 20001-20135 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-31A0 TO Y1660-56A0. | ||||
| 723-20-95100 | VALVE ASS'Y | 20001- | ||
| 1 | \6\ | BLOCK | 20001- | |
| 2 | \6\ | VALVE | 20001- | |
| 3 | 723-11-18180 | SPRING | 20001- | |
| 4 | 723-11-27850 | PLUG | 20001- | |
| 5 | 07002-11023 | O-RING | 20001- | |
| 6 | 723-20-95140 | SPACER | 20001- | |
| 7 | 07000-11007 | O-RING | 20001- |