| Item | Part No. | Part Name | Qty | Serial No. |
| M721045000280 | VALVE ASS'Y,BLOW OFF | 1001- | ||
| 1 | M711045028000 | BODY | 1001- | |
| 2 | M710170028030 | DIAPHRAGM | 1001- | |
| 3 | M711000019150 | COVER | 1001- | |
| 4 | M800919008252 | BOLT | 1001- | |
| 5 | M800919008202 | BOLT | 1001- | |
| 6 | M710171329500 | SILENCER | 1001- |