| Item | Part No. | Part Name | Qty | Serial No. |
| 561-60-82100 | Valve Assembly | 8173- | ||
| 1 | 561-60-62110 | Body | 8173- | |
| 1 | 706-73-85600 | Valve Assembly, Relief | 8173- | |
| 2 | Sleeve | 8173- | ||
| 3 | Seat | 8173- | ||
| 4 | Valve | 8173- | ||
| 5 | Piston | 8173- | ||
| 6 | Spring | 8173- | ||
| 7 | Screw | 8173- | ||
| 8 | O-ring | 8173- | ||
| 9 | Ring, Back-up | 8173- | ||
| 10 | Nut | 8173- | ||
| 11 | 07000-22016 | O-ring | 8173- | |
| 12 | 07001-02016 | Ring, Back-up | 8173- | |
| 13 | 07002-22434 | O-ring | 8173- |