| Owner: | Union Pacific Railroad Company |
| Type: | Box Car |
| AAR Class: | XM: Box car for general service equipped with side or side and end doors. |
| AAR Type: | B627 |
| Detail Info: | Unequipped Box Car, Inside Length: 69' to 79', cushion draft gear/underframe, Plug doors, inside width less than 9ft 6in, Door opening 15ft and over |
| Plate: | C |
| Max Gross Weight: | 263000 |
| Load Limit: | 180600 |
| Dry Capacity: | 5830 |
| Ext L/W/H: | 66' 4" / 10' 8" / 14' 7" |
| Int L/W/H: | 60' 9" / 9' 5" / 10' 1" |
| User Notes: | Bagged Soda Ash Service |
