| Item | Part No. | Part Name | Qty | Serial No. |
| 423-64-15401 | VALVE ASSY, STEERING DEMAND | | |
| 423-64-15902 | VALVE ASSY, STEERING DEMAND | | |
| 423-64-15903 | VALVE ASSY, STEERING DEMAND | | |
| 1 | (NSS) | HOUSING, VALVE | | |
| 2 | (NSS) | SPOOL | | |
| 3 | (NSS) | SPOOL | | |
| 4 | 421-64-15440 | PLUG | | |
| 5 | 421-64-15450 | PLUG | | |
| 5 | 421-64-25290 | PLUG | | |
| 6 | 421-64-15460 | O-RING | | |
| 7 | 421-64-15470 | O-RING | | |
| 8 | 421-64-15480 | RING, BACK-UP | | |
| 9 | 421-64-15490 | SPRING | | |
| 10 | 421-64-15710 | POPPET | | |
| 11 | 421-64-15340 | SPRING | | |
| 12 | 421-64-15730 | SCREW | | |
| 13 | 421-64-15740 | SEAT, SPRING | | |
| 13 | 423-64-15540 | SEAT, SPRING | | |
| 14 | 421-64-15750 | SPRING | | |
| 14 | 423-64-15550 | SPRING | | |
| 15 | 421-64-15760 | CAP | | |
| 16 | 421-64-15420 | BOLT, SOCKET HEAD | | |
| 17 | 421-64-15780 | 0-RING | | |
| 18 | 421-64-15790 | O-RING | | |
| 19 | 421-64-15810 | PLUG | | |
| 20 | 421-64-15820 | O-RING | | |
| 21 | 421-64-15310 | PLUG | | |
| 22 | 421-64-15330 | POPPET | | |
| 23 | 421-64-15850 | O-RING | | |
| 24 | 421-64-15860 | SPRING | | |
| 25 | 421-64-15320 | SHIM | | |
| 26 | 421-64-15870 | O-RING | | |
| 27 | 421-64-15720 | PLUG | | |
| 30 | 421-64-15880 | VALVE, RELIEF | | |
| 31 | 421-64-15890 | VALVE, OVERLOAD RELIEF | | |
| 32 | 421-64-15170 | O-RING | | |
| 33 | 421-64-15840 | SPRING | | |
| 34 | 421-64-15830 | PISTON | | |
| 35 | 423-64-15530 | SCREW | | |
| 36 | 421-64-15760 | CAP | | |
| 37 | 421-64-15420 | BOLT, SOCKET HEAD | | |
| 38 | 421-64-15760 | CAP | | |
| 39 | 421-64-15420 | BOLT, SOCKET HEAD | | |
| 40 | 421-64-15720 | PLUG | | |
| 41 | 421-64-25270 | CAP | | |
| 42 | 421-64-25420 | BOLT, SOCKET HEAD | | |
| 43 | 421-64-25240 | CAP | | |
| 44 | 421-64-25250 | SLEEVE | | |
| 45 | 07000-11007 | O-RING | | |
| 46 | 07000-12012 | O-RING | | |
| | | | |
| | F1 - ORDER STEERING DEMAND VALVE 423-64-15903. | | |
| | | | |
| | | | |
| | F2 - USED WITH STEERING DEMAND VALVE 423-64-15401 ONLY. | | |
| | | | |
| | | | |
| | F3 - USED WITH STEERING DEMAND VALVE 423-64-15902 ONLY. | | |
| | | | |
| | | | |
| | F4 - USED WITH STEERING DEMAND VALVE 423-64-15903 ONLY. | | |
| | | | |
