| Item | Part No. | Part Name | Qty | Serial No. |
| (723-1A-13401) | CONTROL VALVE | 5501- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1664-31A0A T0 Y1664-54A0A . | ||||
| 1 | \6\ | SPOOL | 5501- | |
| 2 | \6\ | SPOOL | 1001- | |
| 3 | \6\ | SPOOL | 1001- | |
| 4 | \6\ | SPOOL | 1001- | |
| 5 | \6\ | SPOOL | 5501- | |
| 6 | \6\ | SPOOL | 1001- | |
| 7 | \6\ | SPOOL | 1001- | |
| 8 | \6\ | SPOOL | 5501- | |
| 9 | \6\ | PLUG | 5501- | |
| 10 | \6\ | PLUG | 5501- | |
| 11 | \6\ | PLUG | 5501- | |
| 12 | \6\ | PLUG | 5501- | |
| 13 | 723-11-17890 | PLUG | 5501- | |
| 14 | 723-11-17880 | PLUG | 5501- | |
| 15 | 723-11-17580 | PLUG | 5501- | |
| 16 | 07002-10823 | O-RING | 5501- | |
| 17 | \6\ | SPRING | 5501- | |
| 18 | \6\ | POPPET | 5501- |