| Item | Part No. | Part Name | Qty | Serial No. |
| (723-1A-12104) | CONTROL VALVE | 1459-3000 | ||
| (723-1A-12103) | CONTROL VALVE | 1226-1458 | ||
| (723-1A-12102) | CONTROL VALVE | 1138-1225 | ||
| (723-1A-12101) | CONTROL VALVE | 1001-1137 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 TO Y1664-21A0. | ||||
| 723-10-12800 | VALVE ASS'Y,RELIEF | 1001-3000 | ||
| 1 | \6\ | SLEEVE | 1001-3000 | |
| 2 | 700-80-64220 | RING | 1001-3000 | |
| 3 | 700-22-11410 | O-RING | 1001-3000 | |
| 4 | \6\ | SEAL | 1001-3000 | |
| 5 | \6\ | POPPET | 1001-3000 | |
| 6 | \6\ | PISTON | 1001-3000 | |
| 7 | \6\ | SEAT | 1001-3000 | |
| 8 | \6\ | SPRING | 1001-3000 | |
| 9 | \6\ | SEAL | 1001-3000 | |
| 10 | 709-25-11390 | O-RING | 1001-3000 | |
| 11 | \6\ | POPPET | 1001-3000 | |
| 12 | \6\ | O-RING | 1001-3000 | |
| 13 | \6\ | PLUG | 1001-3000 | |
| 14 | \6\ | NUT | 1001-3000 | |
| 15 | \6\ | SPRING | 1001-3000 | |
| 16 | \6\ | O-RING | 1001-3000 | |
| 17 | \6\ | SPACER | 1001-3000 | |
| 18 | \6\ | NUT | 1001-3000 |