Basic Information:
| Item Name: | MAINSPRING |
| NSN: | 1005 - 00 - 049 - 9423, 1005000499423 |
| FSC: | FSC 1005 - GUNS, THROUGH 30MM |
| NIIN: | 000499423 |
Manufacturer Part Numbers:
| Part Number: | 59 |
| Manufacturer: | REMINGTON ARMS COMPANY, LLC!DBA REMINGTON ARMS CO |
| NCAGE: | 50446 |
| Part Number: | 7310853 |
| Manufacturer: | US ARMY ARDEC RDECOM |
| NCAGE: | 19200 |
| Part Number: | 7310853 |
| Manufacturer: | SPRINGFIELD ARMORY |
| NCAGE: | 19205 |