| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 21D-70-11120 | RETAINER (ONLY 1-PIECE BOOM) | 21D0220079- | |
| 1 | 21D-946-1130 | RETAINER (ONLY 2-PIECES BOOM) | 21D0220079- | |
| 2 | 21D-70-11160 | PIN | 21D0220079- | |
| 3 | 21D-09-85520 | PIN, COTTER | 21D0220079- | |
| 4 | 22E-70-11340 | CABLE, SAFETY | 21D0220079- | |
| 4 | 21D-70-11140 | CABLE, SAFETY | 21D0220079- | |
| 4 | 21D-70-11190 | CABLE, SAFETY | 21D0220079- | |
| 5 | 21D-910-1180 | CABLE, SAFETY | 21D0220079- | |
| 6 | 21D-70-14140 | PIN | 21D0220079- | |
| 7 | 21D-70-11210 | RUBBER | 21D0220079- | |
| 8 | 21D-09-85530 | PIN, COTTER | 21D0220079- |