| Item | Part No. | Part Name | Qty | Serial No. |
| 421-07-21110 | DAMPER ASS'Y | 50001- | ||
| 1 | ND017321-2130 | CASE,AIR DAMPER | 50001- | |
| 2 | ND116471-6640 | BRACKET,CASE | 50001- | |
| 3 | ND909300-6161 | SCREW,TAPPING | 50001- | |
| 4 | ND116471-6650 | BRACKET,CASE | 50001- | |
| 5 | ND017321-2140 | CASE,AIR DAMPER | 50001- | |
| 6 | ND909000-4161 | SCREW,TAPPING | 50001- | |
| 7 | ND116530-8720 | DAMPER ASS'Y | 50001- | |
| 8 | ND017732-3321 | LEVER,CONTROL | 50001- | |
| 9 | ND913700-4081 | SCREW,WITH WASHER | 50001- | |
| 10 | ND146625-1920 | BUSHING | 50001- | |
| 11 | ND063700-4320 | SERVO MOTOR ASS'Y | 50001- | |
| 12 | ND909000-5161 | SCREW,TAPPING | 50001- | |
| 13 | ND116862-0621 | WIRE | 50001- | |
| 14 | ND116471-6662 | BRACKET,CASE | 50001- | |
| 15 | ND017773-0190 | CLIP | 50001- | |
| 16 | ND909400-5121 | SCREW,TAPPING | 50001- | |
| 17 | ND116471-6672 | BRACKET,CASE | 50001- | |
| 18 | ND146984-4030 | GROMMET | 50001- | |
| 19 | ND146370-5500 | COVER ASS'Y | 50001- | |
| 20 | ND014520-0280 | FILTER | 50001- | |
| 21 | ND014520-0290 | FILTER SUB ASS'Y | 50001- | |
| 22 | ND146370-4911 | COVER ASS'Y | 50001- | |
| 23 | ND902050-6270 | WASHER | 50001- | |
| 24 | ND484923-0020 | KNOB | 50001- | |
| 25 | ND146638-9501 | PACKING | 50001- | |
| 26 | ND146648-1180 | PACKING | 50001- | |
| 27 | ND017231-0670 | CLAMP | 50001- | |
| 28 | ND246634-6681 | BRACKET | 50001- | |
| 29 | ND909300-4101 | SCREW,TAPPING | 50001- | |
| 30 | ND146648-6790 | PACKING | 50001- | |
| 31 | ND246634-8580 | BRACKET | 50001- | |
| 32 | ND905770-4001 | E-RING | 50001- |