| 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 | ||||
| 723-40-71301 | VALVE ASSEMBLY | H55051- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1664-33A0 AND Y1664-34A0 | ||||
| 1 | \6\ | BLOCK | H55051- | |
| 2 | 01252-61040 | BOLT | H55051- | |
| 3 | 01643-51032 | WASHER | H55051- | |
| 4 | 702-21-55620 | PLUG | H55051- | |
| 5 | 07002-11423 | O-RING | H55051- | |
| 6 | 708-8E-16160 | PLUG | H55051- | |
| 7 | 07002-11023 | O-RING | H55051- | |
| 8 | 07000-12011 | O-RING | H55051- | |
| 9 | \6\ | PLUG | H55051- | |
| 10 | 01010-61470 | BOLT | H55051- | |
| 11 | 01010-61460 | BOLT | H55051- | |
| 12 | 01643-31445 | WASHER | H55051- | |
| 13 | 723-46-17560 | PLATE | H55051- | |
| 14 | 01643-51032 | WASHER | H55051- | |
| 15 | 01010-81040 | BOLT | H55051- |