| Item | Part No. | Part Name | Qty | Serial No. |
| 723-19-15800 | Valve, Control | 20509-21000 | ||
| 723-11-01480 | Case Subassembly | 20509-21000 | ||
| 1 | Case, Spring, Spring | 20509-21000 | ||
| 2 | 722-12-19120 | O-ring | 20509-21000 | |
| 3 | 702-21-54290 | O-ring | 20509-21000 | |
| 4 | Seat | 20509-21000 | ||
| 5 | Ball | 20509-21000 | ||
| 6 | Seat | 20509-21000 | ||
| 7 | Plug | 20509-21000 | ||
| 8 | 723-11-19960 | O-ring | 20509-21000 |