US Army, Technical Manual, TM 5-3810-294-10, CRANE, TRUCK MOUNTED, 3/4 CU YD, 20-TON W/CLAMSHELL, DRAGLINE AND BACKHOE ATTACHMENTS, GED HARNISCHFEGE CORP MODEL M320T2 (NSN 3810-00-151-4431)
| Country | USA |
| Brand | CURT |
| Manufacturer | Curt Manufacturing |
| Binding | Automotive |
| ItemPartNumber | 57220 |
| Model | 57220 |
| Warranty | One Year Limited |
| Color | Black |
| ReleaseDate | 2014-04-16 |
| Size | 4-Pin Trailer Wiring |
| UnitCount | 1 |
| UPCs | 612314014200 |
| EANs | 0612314014200 |