| Item | Part No. | Part Name | Qty | Serial No. |
| 723-48-21101 | VALVE ASSEMBLY | H55051- | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS. Y1664-01A0 TO Y1664-20A0 | ||||
| \6\ | BODY SUB ASSEMBLY | H55051- | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 TO Y1664-06A0 | ||||
| 1 | \6\ | BLOCK | H55051- | |
| 2 | \6\ | SPOOL | H55051- | |
| 3 | \6\ | SPOOL | H55051- | |
| 4 | \6\ | SPOOL | H55051- | |
| 5 | \6\ | SPOOL | H55051- | |
| 6 | \6\ | SPOOL | H55051- | |
| 7 | \6\ | SPOOL | H55051- | |
| 8 | 723-46-15130 | PLUG | H55051- | |
| 9 | 723-46-15140 | PLUG | H55051- | |
| 10 | 07002-10823 | O-RING | H55051- | |
| 11 | 708-7T-16460 | BALL | H55051- | |
| 12 | 723-46-15690 | RETAINER | H55051- | |
| 13 | 723-46-15690 | RETAINER | H55051- | |
| 14 | 723-46-14110 | SPRING | H55051- | |
| 15 | 723-46-14270 | SPRING | H55051- |