| Item | Part No. | Part Name | Qty | Serial No. |
| 723-49-23704 | VALVE ASSEMBLY | K53421- | ||
| 723-49-23702 | VALVE ASSEMBLY | K50235-K53420 | ||
| (723-49-23700) | VALVE ASSEMBLY | K50001-K50234 | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1666-01A0 T0 Y1666-23A0. | ||||
| 1 | 723-40-57200 | VALVE ASSEMBLY, UNLOAD | K50001- | |
| 2 | 07000-12014 | O-RING | K50001- | |
| 3 | 723-40-56350 | RING | K50001- | |
| 4 | 07000-12016 | O-RING | K50001- | |
| 5 | 723-60-22230 | RING, BACK-UP | K50001- | |
| 6 | 07002-12434 | O-RING | K50001- |