| 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. | ||||
| \6\ | BODY GROUP | 20136- | ||
| \6\ | BODY GROUP | 20001-20135 | ||
| 1 | \6\ | SPOOL | 20001- | |
| 2 | \6\ | SPOOL | 20136- | |
| 2 | \6\ | SPOOL | 20001-20135 | |
| 3 | \6\ | PLUG | 20001- | |
| 4 | \6\ | O-RING | 20001- | |
| 5 | 723-26-15121 | RETAINER | 20001- | |
| 6 | 723-26-16740 | RETAINER | 20001- | |
| 7 | 723-26-14520 | SPRING | 20001- | |
| 8 | 723-26-14530 | SPRING | 20001- | |
| 9 | 723-26-14540 | SPRING | 20001- | |
| 10 | 723-26-16730 | PISTON | 20001- | |
| 11 | 723-26-16710 | CASE | 20001- | |
| 12 | 723-26-16720 | CASE | 20001- | |
| 13 | 575-41-17420 | O-RING | 20001- | |
| 14 | 07000-11005 | O-RING | 20001- | |
| 15 | 01252-60630 | BOLT | 20001- | |
| 16 | 01252-60645 | BOLT | 20001- |