| Item | Part No. | Part Name | Qty | Serial No. |
| 723-49-21101 | VALVE ASSEMBLY | H55051- | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1666-01A0 TO Y1666-22A0 | ||||
| \6\ | BODY SUB ASSEMBLY | H55051- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1666-20A0 AND Y1666-21A0 | ||||
| 1 | \6\ | BLOCK | H55051- | |
| 2 | \6\ | SPOOL | H55051- | |
| 3 | 723-46-15130 | PLUG | H55051- | |
| 4 | 07002-10823 | O-RING | H55051- | |
| 5 | 708-7T-16460 | BALL | H55051- | |
| 6 | 723-46-15120 | RETAINER | H55051- | |
| 7 | 723-46-14110 | SPRING | H55051- | |
| 8 | 723-46-15111 | CASE | H55051- | |
| 9 | 07430-71380 | O-RING | H55051- | |
| 10 | 01252-60820 | BOLT | H55051- | |
| 11 | 07000-11009 | O-RING | H55051- | |
| 12 | 07000-12021 | O-RING | H55051- | |
| 13 | 723-11-19130 | O-RING | H55051- | |
| 14 | 07000-13032 | O-RING | H55051- | |
| 15 | 723-46-17510 | O-RING | H55051- | |
| 16 | 723-46-17520 | RING | H55051- | |
| 17 | 723-46-17530 | O-RING | H55051- |