| 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 | \6\ | SPOOL | 1226-@ | |
| \6\ | SPOOL | 1001-1225 | ||
| 2 | \6\ | SPOOL | 1001-3000 | |
| 3 | \6\ | SPOOL | 1138-@ | |
| \6\ | SPOOL | 1001-1137 | ||
| 4 | \6\ | SPOOL | 1001-@ | |
| 5 | \6\ | SPOOL | 1001-3000 | |
| 6 | \6\ | SPOOL | 1001-@ | |
| 7 | \6\ | SPOOL | 1001-@ | |
| 8 | \6\ | SPOOL | 1001-3000 |