| Item | Part No. | Part Name | Qty | Serial No. |
| 721-31-10050 | ACCUMULATOR ASS'Y | 50001-50700 | ||
| 1 | 721-10-10080 | CYLINDER | 50001-50700 | |
| 2 | 721-36-10011 | PISTON | 50001-50700 | |
| 3 | 721-47-12020 | SEAL | 50001-@ | |
| 4 | 721-47-12010 | SEAL | 50001-50700 | |
| 5 | 721-88-12010 | RING,BACK-UP | 50001-50700 | |
| 6 | 07156-01012 | RING,WEAR | 50001-50700 | |
| 7 | 721-29-11021 | COVER,TOP | 50001-50700 | |
| 8 | 721-89-12010 | VALVE | 50001-@ | |
| 9 | 07001-05090 | RING,BACK-UP | 50001-50700 | |
| 10 | 07000-15090 | O-RING | 50001-50700 | |
| 11 | 07000-02100 | O-RING | 50001-50700 | |
| 12 | 721-89-10040 | PLATE¤ SPECIFICATION | 50001-50700 |