| Item | Part No. | Part Name | Qty | Serial No. |
| (723-56-16401) | CONTROL VALVE | 20136- | ||
| (723-56-16400) | CONTROL VALVE | 20001-20135 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-31A0 TO Y1660-56A0. | ||||
| 723-50-53300 | VALVE ASS'Y | 20001- | ||
| 1 | \6\ | BLOCK | 20001- | |
| 2 | \6\ | VALVE | 20001- | |
| 3 | 702-21-35130 | SEAL | 20001- | |
| 4 | 723-30-51130 | ORIFICE | 20001- | |
| 5 | 723-50-53380 | SPRING | 20001- | |
| 6 | \6\ | SLEEVE | 20001- | |
| 7 | 07000-12010 | O-RING | 20001- | |
| 8 | 07001-02010 | RING | 20001- | |
| 9 | 07000-12012 | O-RING | 20001- | |
| 10 | 07001-02012 | RING,BACK-UP | 20001- | |
| 11 | \6\ | SEAT | 20001- | |
| 12 | 07000-12016 | O-RING | 20001- | |
| 13 | \6\ | PISTON | 20001- | |
| 14 | 723-50-53350 | SPRING | 20001- | |
| 15 | 723-50-53270 | PLATE | 20001- | |
| 16 | 723-50-53260 | RETAINER | 20001- | |
| 17 | 07000-12015 | O-RING | 20001- | |
| 18 | 07000-13030 | O-RING | 20001- | |
| 19 | 01252-60630 | BOLT | 20001- | |
| 20 | \6\ | PLUG | 20001- | |
| 21 | 700-13-31161 | O-RING | 20001- | |
| 22 | 07000-11007 | O-RING | 20001- |