| Item | Part No. | Part Name | Qty | Serial No. |
| 20C-973-3300 | BOOM ASS'Y,1ST | 10001- | ||
| 1 | \6\ | BOOM,1ST | 10001- | |
| 2 | 20C-70-31140 | BUSHING | 10001- | |
| 3 | 07145-00035 | SEAL,DUST | 10001- | |
| 4 | 07020-00675 | FITTING,GREASE | 10001- | |
| 5 | 20C-70-31160 | PIN | 10001- | |
| 6 | 20M-70-61120 | PLATE | 10001- | |
| 7 | 01010-81020 | BOLT | 10001- | |
| 8 | 01643-31032 | WASHER | 10001- | |
| 9 | 22K-70-11170 | SPACER¤ 1.0MM | 10001- | |
| 22K-70-11151 | SPACER¤ 0.5MM | 10001- |