| Item | Part No. | Part Name | Qty | Serial No. |
| (723-48-27803) | CONTROL VALVE | 52512- | ||
| (723-48-27802) | CONTROL VALVE | 51885-52511 | ||
| (723-48-27801) | CONTROL VALVE | 50532-51884 | ||
| (723-48-27800) | CONTROL VALVE | 50001-50531 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-61A0 TO Y1664-83A0. | ||||
| 1 | 723-40-92701 | VALVE ASS'Y,RELIEF | 50001- | |
| 2 | 723-40-51380 | O-RING | 50001- | |
| 3 | 700-80-64220 | RING,BACK-UP | 50001- | |
| 4 | 07002-52434 | O-RING | 50001- |