| Owner: | Norfolk Southern |
| Type: | Open Hopper |
| AAR Class: | HM: 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. |
| AAR Type: | H340 |
| Detail Info: | Unequipped Hopper, Load Limit: 185,000 and greater, Non-rotary couplers |
| Plate: | C |
| NS Class: | HS31A |
| Max Gross Weight: | 286000 |
| Load Limit: | 228300 |
| Dry Capacity: | 2660 |
| Ext L/W/H: | 37' 11" / 10' 8" / 14' 2" |
| User Notes: | ex-NS 150221 exx-SOU 100661 |
