| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | (20K-61-31121) | CYLINDER ASSEMBLY | H55051- | |
| 2 | 02782-10315 | ELBOW | H55051- | |
| 3 | 02782-10316 | ELBOW | H55051- | |
| 4 | 07002-12034 | O-RING | H55051- | |
| 5 | 02896-11009 | O-RING | H55051- | |
| 6 | 20E-61-K2581 | PLATE | H55051- | |
| 7 | 01010-81020 | BOLT | H55051- | |
| 8 | 01643-31032 | WASHER | H55051- | |
| \SEE FIG. S0450-31A0 |