| Item | Part No. | Part Name | Qty | Serial No. |
| (723-58-19500) | CONTROL VALVE | 1601- | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-21A0 TO Y1664-33A0. | ||||
| 723-50-55100 | VALVE ASS'Y | 1601- | ||
| 1 | \6\ | SLEEVE | 1601- | |
| 2 | \6\ | VALVE | 1601- | |
| 3 | \6\ | SPRING | 1601- | |
| 4 | \6\ | PLUG | 1601- | |
| 5 | \6\ | RING | 1601- | |
| 6 | \6\ | O-RING | 1601- | |
| 7 | 07002-12434 | O-RING | 1601- | |
| 8 | 07000-12016 | O-RING | 1601- | |
| 9 | 07001-02016 | RING,BACK-UP | 1601- | |
| 10 | 07000-12014 | O-RING | 1601- | |
| 11 | 07001-02014 | RING | 1601- |