| 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. | ||||
| 723-30-90600 | VALVE ASS'Y,RELIEF | 1601- | ||
| 1 | \6\ | SLEEVE | 1601- | |
| 2 | \6\ | HOLDER | 1601- | |
| 3 | \6\ | SCREW | 1601- | |
| 4 | \6\ | RETAINER | 1601- | |
| 5 | \6\ | POPPET | 1601- | |
| 6 | \6\ | SEAT | 1601- | |
| 7 | \6\ | VALVE | 1601- | |
| 8 | \6\ | RING,SNAP | 1601- | |
| 9 | \6\ | SPRING | 1601- | |
| 10 | \6\ | SPRING | 1601- | |
| 11 | 700-13-31161 | O-RING | 1601- | |
| 12 | 700-80-51190 | RING | 1601- | |
| 13 | \6\ | O-RING | 1601- | |
| 14 | \6\ | RING,BACK-UP | 1601- | |
| 15 | 07002-13334 | O-RING | 1601- | |
| 16 | \6\ | NUT | 1601- | |
| 17 | \6\ | NUT | 1601- | |
| 18 | \6\ | O-RING | 1601- | |
| 19 | \6\ | O-RING | 1601- |