| Item | Part No. | Part Name | Qty | Serial No. |
| (723-1A-12104) | CONTROL VALVE | 1459-3000 | ||
| (723-1A-12103) | CONTROL VALVE | 1226-1458 | ||
| (723-1A-12102) | CONTROL VALVE | 1138-1225 | ||
| (723-1A-12101) | CONTROL VALVE | 1001-1137 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 TO Y1664-21A0. | ||||
| 1 | 07000-12100 | O-RING | 1001-@ | |
| 2 | 723-11-19110 | O-RING | 1001-@ | |
| 3 | 723-11-19130 | O-RING | 1001-3000 | |
| 4 | 07000-11007 | O-RING | 1001-3000 | |
| 5 | 07000-11004 | O-RING | 1001-3000 | |
| 6 | \6\ | STUD | 1001-3000 | |
| 7 | 01580-10806 | NUT | 1001-@ | |
| 8 | 01643-50823 | WASHER | 1001-@ | |
| 9 | 723-11-19160 | BOLT | 1001-3000 | |
| 10 | 723-11-19150 | RING | 1001-@ |