| Item | Part No. | Part Name | Qty | Serial No. |
| (723-56-16401) | CONTROL VALVE | 20136- | ||
| (723-56-16400) | CONTROL VALVE | 20001-20135 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-31A0 TO Y1660-56A0. | ||||
| 723-50-62300 | VALVE ASS'Y | 20001- | ||
| 1 | \6\ | BLOCK | 20001- | |
| 2 | \6\ | SPOOL | 20001- | |
| 3 | 702-21-55640 | SPRING | 20001- | |
| 4 | 702-21-55620 | PLUG | 20001- | |
| 5 | 07002-11423 | O-RING | 20001- | |
| 6 | 723-40-91600 | VALVE ASS'Y,RELIEF | 20001- | |
| 7 | 702-16-53920 | O-RING | 20001- | |
| 8 | 07002-11623 | O-RING | 20001- | |
| 9 | 04260-00793 | BALL | 20001- | |
| 10 | 702-21-55720 | SPRING | 20001- | |
| 11 | 702-21-55710 | SEAT | 20001- | |
| 12 | 07000-11009 | O-RING | 20001- | |
| 13 | \6\ | PLUG | 20001- | |
| 14 | 708-8E-16160 | PLUG | 20001- | |
| 15 | 07002-11023 | O-RING | 20001- |