| Item | Part No. | Part Name | Qty | Serial No. |
| 723-28-11401 | CONTROL VALVE | 1019- | ||
| 723-28-11400 | CONTROL VALVE | 1001-1018 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 TO Y1664-07A0. | ||||
| \6\ | BODY GROUP | 1019- | ||
| \6\ | BODY GROUP | 1001-1018 | ||
| 1 | \6\ | BLOCK | 1001- | |
| 2 | \6\ | BLOCK | 1001- | |
| 3 | \6\ | BLOCK | 1001- | |
| 4 | \6\ | BLOCK | 1001- | |
| 5 | \6\ | SPOOL | 1001- | |
| 6 | \6\ | SPOOL | 1001- | |
| 7 | \6\ | SPOOL | 1001- | |
| 8 | \6\ | SPOOL | 1019- | |
| \6\ | SPOOL | 1001-1018 | ||
| 9 | \6\ | SPOOL | 1001- | |
| 10 | \6\ | PLUG | 1001- | |
| 11 | \6\ | O-RING | 1001- | |
| 12 | 723-26-15110 | CASE | 1001- | |
| 13 | 709-26-11450 | SPRING | 1001- | |
| 14 | 723-26-15120 | RETAINER | 1001- | |
| 15 | 575-41-17420 | O-RING | 1001- | |
| 16 | 01252-60630 | BOLT | 1001- | |
| 17 | 01641-20608 | WASHER | 1001- |