| Owner: | Department Of Defense |
| Type: | Flat Car |
| AAR Class: | FW: Flat car with hole to enable lading to be lowered due to clearance limits. |
| AAR Type: | F461 |
| Detail Info: | Flat Car, Load Limit: 200,000lb and greater, Inside length: less than 53ft |
| Plate: | B |
| Max Gross Weight: | 512000 |
| Load Limit: | 374900 |
| Ext L/W/H: | 64' 1" / 10' 8" / 10' 1" |
| Int L/W/H: | 9' 10" / 9' 10" / 0' 0" |
| User Notes: | Nuke Wagon (512K) |
