Basic Information:
| Item Name: | NUT,HALF,REAR SIGHT |
| NSN: | 1005 - 00 - 600 - 8974, 1005006008974 |
| FSC: | FSC 1005 - GUNS, THROUGH 30MM |
| NIIN: | 006008974 |
Manufacturer Part Numbers:
| Part Number: | A10491 |
| Manufacturer: | MANROY ENGINEERING |
| NCAGE: | U4574 |
| Part Number: | 3662003486 |
| Manufacturer: | FN HERSTAL SA |
| NCAGE: | B0897 |
| Part Number: | 6008974 |
| Manufacturer: | ARMY UNITED STATES DEPARTMENT OF!THE!DBA ROCK ISLAND ARSENAL |
| NCAGE: | 19204 |