| Item | Part No. | Part Name | Qty | Serial No. |
| (723-18-15801) | CONTROL VALVE | 21044- | ||
| (723-18-15800) | CONTROL VALVE | 20001-21043 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 TO Y1660-11A0. | ||||
| 1 | \6\ | PLUG | 20001- | |
| 2 | \6\ | PLUG | 20001- | |
| 3 | \6\ | PLUG | 20001- | |
| 4 | \6\ | PLUG | 20001- | |
| 5 | \6\ | PLUG | 20001- | |
| 6 | \6\ | PLUG | 20001- | |
| 7 | 07002-10823 | O-RING | 20001- | |
| 8 | \6\ | POPPET | 20001- | |
| 9 | \6\ | SPRING | 20001- | |
| 10 | 07000-11009 | O-RING | 20001- | |
| 11 | 723-26-15230 | PLUG | 20001- | |
| 12 | 07002-12434 | O-RING | 20001- | |
| 13 | \6\ | SPOOL | 20001- | |
| 14 | \6\ | SEAL | 20001- | |
| 15 | \6\ | PLUG | 20001- | |
| 16 | \6\ | VALVE | 20001- | |
| 17 | 723-11-18220 | SPRING | 20001- | |
| 18 | 723-11-18250 | SPRING | 20001- | |
| 19 | 723-11-28810 | SLEEVE | 20001- | |
| 20 | 720-68-19760 | O-RING | 20001- | |
| 21 | 723-11-18150 | O-RING | 20001- | |
| 22 | 723-11-18160 | RING | 20001- |
