| 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 | 20001- | ||
| 1 | \6\ | VALVE,CHECK | 20001- | |
| 2 | 709-25-11361 | SPRING | 20001- | |
| 3 | 723-26-15580 | PLUG | 20001- | |
| 4 | 07000-12016 | O-RING | 20001- | |
| 5 | 723-60-22230 | RING,BACK-UP | 20001- | |
| 6 | 708-8E-16160 | PLUG | 20001- | |
| 7 | 07002-11023 | O-RING | 20001- | |
| 8 | 702-21-55620 | PLUG | 20001- | |
| 9 | 07002-11423 | O-RING | 20001- | |
| 10 | 708-21-12541 | PLUG | 20001- | |
| 11 | 144-14-54610 | O-RING | 20001- | |
| 12 | 723-56-31730 | O-RING | 20001- | |
| 13 | 702-75-11520 | O-RING | 20001- | |
| 14 | 07000-12014 | O-RING | 20001- | |
| 15 | 723-26-16460 | PLUG | 20001- | |
| 16 | 07000-11007 | O-RING | 20001- | |
| 17 | 07001-01007 | RING,BACK-UP | 20001- |