Basic Information:
| Item Name: | HOUSING,MAINSPRING |
| NSN: | 1005 - 00 - 309 - 6651, 1005003096651 |
| FSC: | FSC 1005 - GUNS, THROUGH 30MM |
| NIIN: | 003096651 |
Manufacturer Part Numbers:
| Part Number: | 27S |
| Manufacturer: | TRIUMPH ENGINE CONTROL SYSTEMS, LLC |
| NCAGE: | 11599 |
| Part Number: | 27S |
| Manufacturer: | COLT DEFENSE LLC |
| NCAGE: | 13629 |