| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 20A-57-11112 | SEAT | 1869- | |
| 20A-57-11111 | SEAT | 1001-1868 | ||
| 2 | 20A-57-11130 | PLATE | 1001- | |
| 20A-57-11140 | HINGE (WELDED) | 1001- | ||
| 3 | 01023-10614 | SCREW | 1001- | |
| 4 | 01434-10616 | BOLT¤ WING,WING | 1001- | |
| 20A-57-11200 | BRACKET ASS'Y | 1001- | ||
| 5 | \6\ | BRACKET | 1001- | |
| 6 | 20A-57-11230 | LEVER | 1001- | |
| 7 | 20A-57-11220 | PIN | 1001- | |
| 8 | 09461-00023 | SPRING | 1001- | |
| 9 | 04050-13020 | PIN,COTTER | 1001- | |
| 10 | 01435-00820 | BOLT | 1001- | |
| 11 | 20A-57-11240 | BRACKET | 1001- | |
| 12 | 01435-00816 | BOLT | 1001- | |
| 13 | 20A-57-11251 | HINGE | 1001- | |
| 14 | 01435-00816 | BOLT | 1001- |