| A51564900-9 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
| A51S64900-9 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
| A51S64900-9 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
| A51S64900-9 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
| A51S64900-9 | 9J659 | D F P MANUFACTURING CORP DBA D F P |