| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 425-07-21141 | DAMPER ASSEMBLY | H20051- | |
| 1A | ND017321-2131 | CASE | H20051- | |
| 2 | ND116471-7180 | BRACKET | H20051- | |
| 3 | ND909300-6161 | SCREW | H20051- | |
| 4 | ND116471-7190 | BRACKET | H20051- | |
| 5 | ND017321-3070 | CASE | H20051- | |
| 6 | ND909000-4161 | SCREW | H20051- | |
| 7 | ND116530-0710 | DAMPER ASSEMBLY | H20051- | |
| 8 | ND017732-4880 | LEVER | H20051- | |
| 9 | ND913700-4081 | SCREW | H20051- | |
| 10 | ND146625-2630 | BUSHING | H20051- | |
| 11 | ND063700-5731 | SERVO MOTOR ASSEMBLY | H20051- | |
| 12 | ND909000-5161 | SCREW | H20051- | |
| 13 | ND246451-0200 | WIRE | H20051- | |
| 14 | ND116471-6662 | BRACKET | H20051- | |
| 15 | ND017773-0190 | CLIP | H20051- | |
| 16 | ND909400-5101 | SCREW | H20051- | |
| 17 | ND116471-6672 | BRACKET | H20051- | |
| 18 | ND146984-4030 | GROMMET | H20051- | |
| 19 | ND146370-5500 | COVER ASSEMBLY | H20051- | |
| 20 | ND014540-0280 | FILTER SET | H20051- | |
| 21 | ND014540-0290 | FILTER SET | H20051- | |
| 22 | ND146370-4911 | COVER ASSEMBLY | H20051- | |
| 23 | ND902050-6270 | WASHER | H20051- | |
| 24 | ND484923-0020 | KNOB | H20051- | |
| 25 | ND146648-1170 | PACKING | H20051- | |
| 26 | ND146648-1181 | PACKING | H20051- | |
| 27 | ND017231-0670 | CLAMP | H20051- | |
| 28 | ND146522-6190 | BRACKET | H20051- | |
| 29 | ND146648-6790 | PACKING | H20051- | |
| 30 | ND246634-8580 | BRACKET | H20051- | |
| 31 | ND905770-4001 | E-RING | H20051- | |
| 32 | ND146638-9501 | PACKING | H20051- |