| Owner: | Atlantic Coast Line |
| Type: | Open Hopper |
| AAR Class: | HMS: Specialty 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: | K320 |
| Detail Info: | Hopper, Load Limit: 185,000 and greater, Non-rotary couplers |
