| Owner: | Southern Pacific |
| Type: | Flat Car |
| AAR Class: | FMS: Specialty Ordinary flat car for general service. This car has flooring laid over sills and without sides or ends. |
| AAR Type: | F323 |
| Detail Info: | Flat Car, Load Limit: 185,000-199,999lb, Equipped with cushioned draft gear/underframe, Inside length: 60-75ft |
| Plate: | B |
| Max Gross Weight: | 263000 |
| Load Limit: | 186800 |
| Ext L/W/H: | 64' 9" / 10' 5" / 4' 4" |
| Int L/W/H: | 60' 0" / 10' 5" / 0' 0" |
