| Item | Part No. | Part Name | Qty | Serial No. |
| 723-18-17800 | Valve, Control | 20509-21000 | ||
| 1 | 723-11-37210 | Case, Spring | 20509-21000 | |
| 2 | 07000-11008 | O-ring | 20509-21000 | |
| 3 | 723-11-17361 | Bolt | 20509-21000 | |
| 4 | 723-11-17353 | Retainer | 20509-21000 | |
| 5 | 723-11-17330 | Retainer | 20509-21000 | |
| 6 | 723-11-17341 | Spring | 20509-21000 | |
| 7 | 722-12-19120 | O-ring | 20509-21000 | |
| 8 | 723-11-37220 | Case, Spring | 20509-21000 | |
| 8 | 723-11-01510 | Case Subassembly | 20509-21000 | |
| 9 | Case, Spring | 20509-21000 | ||
| 10 | 722-12-19120 | O-ring | 20509-21000 | |
| 11 | 702-21-54290 | O-ring | 20509-21000 | |
| 12 | Seat | 20509-21000 | ||
| 13 | Ball | 20509-21000 | ||
| 14 | Seat | 20509-21000 | ||
| 15 | 01252-60640 | Bolt, Hexagon Socket Head | 20509-21000 | |
| 16 | 01252-60620 | Bolt, Hexagon Socket Head | 20509-21000 | |
| 17 | 01252-60635 | Bolt, Hexagon Socket Head | 20509-21000 | |
| 18 | 01252-60612 | Bolt, Hexagon Socket Head | 20509-21000 |