| Owner: | Baltimore & Ohio |
| Type: | Open Hopper |
| AAR Class: | HMSR: Open top self-clearing car, having fixed sides and ends and bottom consisting of two divided hoppers with doors hinged crosswise of car and dumping between rails. Equipped with roof |
| AAR Type: | K374 |
| Detail Info: | Hopper, Load Limit: 185,000 and greater, Less than 3000 cu ft capacity *Light Density Service |
| Plate: | B |
| Max Gross Weight: | 263000 |
| Load Limit: | 204800 |
| Dry Capacity: | 2000 |
| Ext L/W/H: | 43' 10" / 10' 7" / 13' 10" |
