| Item | Part No. | Part Name | Qty | Serial No. |
| (723-23-10300) | VALVE ASS'Y | B20001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 T0 Y1660-05A0. | ||||
| 1 | \6\ | SPOOL | B20001- | |
| 2 | 723-26-14180 | SPRING | B20001- | |
| 3 | 709-70-71610 | SEAL | B20001- | |
| 4 | \6\ | SLEEVE | B20001- | |
| 5 | \6\ | PISTON | B20001- | |
| 6 | 723-26-14190 | SPRING | B20001- | |
| 7 | 07000-12018 | O-RING | B20001- | |
| 8 | 07001-02018 | RING,BACK-UP | B20001- | |
| 9 | 07002-02434 | O-RING | B20001- | |
| 10 | 723-40-56130 | PLUG | B20001- | |
| 11 | 07002-11423 | O-RING | B20001- | |
| 12 | 723-26-15230 | PLUG | B20001- | |
| 13 | 07002-12434 | O-RING | B20001- | |
| 14 | 723-26-15370 | PLUG | B20001- | |
| 15 | \6\ | PISTON | B20001- | |
| 16 | \6\ | VALVE | B20001- | |
| 17 | \6\ | VALVE | B20001- | |
| 18 | 723-26-14220 | SPRING | B20001- | |
| 19 | 723-26-14240 | SPRING | B20001- | |
| 20 | 723-26-15310 | PLUG | B20001- | |
| 21 | 07002-02034 | O-RING | B20001- | |
| 22 | 07000-11007 | O-RING | B20001- | |
| 23 | \6\ | PLUG | B20001- | |
| 24 | 07002-11223 | O-RING | B20001- | |
| 25 | 07000-11007 | O-RING | B20001- | |
| 26 | 07001-01007 | RING,BACK-UP | B20001- | |
| 27 | \6\ | SCREW | B20001- | |
| 28 | \6\ | PLUG | B20001- |