| Item | Part No. | Part Name | Qty | Serial No. |
| (723-18-15904) | CONTROL VALVE | 6334- | ||
| \0\723-18-15903 | CONTROL VALVE | 5976-6333 | ||
| \0\723-18-15902 | CONTROL VALVE | 5430-5975 | ||
| (723-18-15901) | CONTROL VALVE | 5376-5429 | ||
| \0\723-18-15900 | CONTROL VALVE | 5001-5375 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 TO Y1660-12A0. | ||||
| 1 | 723-11-18190 | PLUG | 5001- | |
| 2 | 07002-11023 | O-RING | 5001- | |
| 3 | 723-11-18170 | VALVE | 5001- | |
| 4 | 723-11-18180 | SPRING | 5001- | |
| 5 | 723-11-19880 | PLUG | 5001- | |
| 6 | 07000-11009 | O-RING | 5001- | |
| 7 | 07001-01009 | RING,BACK-UP | 5001- | |
| 8 | 723-11-18550 | RETAINER | 5001- | |
| 9 | 723-11-18540 | SPRING | 5001- | |
| 10 | 723-11-18530 | VALVE | 5001- | |
| 11 | 723-11-19960 | O-RING | 5001- | |
| 12 | 723-11-18520 | SEAT | 5001- |