| Item | Part No. | Part Name | Qty | Serial No. |
| 723-48-21201 | VALVE ASSEMBLY | H55051- | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-21A0 TO Y1664-40A0 | ||||
| 723-40-56302 | VALVE ASSEMBLY | H55051- | ||
| 1 | \6\ | SLEEVE | H55051- | |
| 2 | \6\ | VALVE | H55051- | |
| 3 | \6\ | SPRING | H55051- | |
| 4 | \6\ | PLUG | H55051- | |
| 5 | \6\ | PLUG | H55051- | |
| 6 | 07000-12014 | O-RING | H55051- | |
| 7 | 723-40-56350 | RING | H55051- | |
| 8 | 07000-12016 | O-RING | H55051- | |
| 9 | 723-60-22230 | RING | H55051- | |
| 10 | \6\ | O-RING | H55051- | |
| 11 | 07002-12434 | O-RING | H55051- |