| Item | Part No. | Part Name | Qty | Serial No. |
| (723-18-15502) | CONTROL VALVE | 20001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 T0 Y1660-20A0. | ||||
| 723-10-12800 | VALVE ASS'Y,RELIEF | 20001- | ||
| 1 | \6\ | SLEEVE | 20001- | |
| 2 | 700-80-64220 | RING | 20001- | |
| 3 | 700-22-11410 | O-RING | 20001- | |
| 4 | \6\ | SEAL | 20001- | |
| 5 | \6\ | POPPET | 20001- | |
| 6 | \6\ | PISTON | 20001- | |
| 7 | \6\ | SEAT | 20001- | |
| 8 | \6\ | SPRING | 20001- | |
| 9 | \6\ | SEAL | 20001- | |
| 10 | 709-25-11390 | O-RING | 20001- | |
| 11 | \6\ | POPPET | 20001- | |
| 12 | \6\ | O-RING | 20001- | |
| 13 | \6\ | PLUG | 20001- | |
| 14 | \6\ | NUT | 20001- | |
| 15 | \6\ | SPRING | 20001- | |
| 16 | \6\ | O-RING | 20001- | |
| 17 | \6\ | SPACER | 20001- | |
| 18 | \6\ | NUT | 20001- |