| Item | Part No. | Part Name | Qty | Serial No. |
| 20K-47-41160 | Step Assembly | H55300- | ||
| 1 | Box | H55300- | ||
| 2 | 20K-47-31272 | Seal | H55300- | |
| 3 | 20K-47-31262 | Door Assembly | H55300- | |
| 4 | 198-54-41982 | Lock Assembly (Welded) | H55300- | |
| 5 | 20E-54-K1750 | Hinge (Welded) | H55300- | |
| 6 | 20Y-54-11611 | Stopper | H55300- | |
| 7 | 01580-11008 | Nut | H55300- | |
| 8 | 01010-81645 | Bolt | H55300- | |
| 9 | 01643-31645 | Washer | H55300- | |
| 10 | 20E-47-H0030 | Cap | H55300- |