| Item | Part No. | Part Name | Qty | Serial No. |
| \0 | (42N-989-1140) | HAMMER, HP500 | F50003- | |
| 1 | 42N-989-2390 | HOUSING | F50003- | |
| 2 | 42N-989-2440 | SPACER | F50003- | |
| 3 | 42N-989-2430 | NUT, STOP | F50003- | |
| 4 | 42N-989-2420 | SCREW | F50003- | |
| 5 | 42N-989-2450 | NUT | F50003- | |
| 6 | 42N-989-2460 | SPLIT PIN | F50003- | |
| 7 | 42N-989-2410 | NUT, STOP | F50003- |