| Item | Part No. | Part Name | Qty | Serial No. |
| 425-07-21152 | DUCT ASS'Y,AIR | 51001-@ | ||
| \0\425-07-21151 | DUCT ASS'Y,AIR | 51001-51023 | ||
| 1 | ND145820-9610 | DUCT,AIR | 51001-@ | |
| 2 | ND145820-8330 | DUCT,AIR | 51001-@ | |
| 3 | ND116730-0690 | DAMPER ASS'Y | 51001-51023 | |
| 4 | ND116730-0700 | DAMPER ASS'Y | 51001-51023 | |
| 5 | ND017732-4840 | LEVER,CONTROL | 51001-51023 | |
| 6 | ND017732-4850 | LEVER,CONTROL | 51001-51023 | |
| 7 | ND017732-4860 | LEVER,CONTROL | 51001-51023 | |
| 8 | ND017732-4870 | LEVER | 51001-51023 | |
| 9 | ND116662-0640 | SHAFT | 51001-@ | |
| 10 | ND949008-0420 | SCREW,TAPPING | 51001-@ | |
| 11 | ND913100-3081 | SCREW,WITH WASHER | 51001-@ | |
| 12 | ND116632-0171 | SPRING,HOLDING | 51001-@ | |
| 13 | ND063700-6570 | SERVO MOTOR ASS'Y | 51001-51023 | |
| 14 | ND949008-0780 | SCREW,TAPPING | 51001-@ | |
| 15 | ND146625-2630 | BUSHING | 51001-51023 | |
| 16 | ND246690-2930 | CLAMP | 51001-51023 | |
| 17 | ND017773-0140 | CLIP | 51001-@ | |
| 18 | ND116662-4210 | SHAFT | 51001-51023 | |
| 19 | ND949202-0940 | BUSHING | 51001-51023 | |
| 20 | ND146522-6180 | BRACKET | 51001-51023 | |
| 21 | ND909400-5161 | SCREW,TAPPING | 51001-51023 |