Nummer: 00719
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of minelaying : | 27.10.1939 |
| Nationality of U-boat : | German |
| U-boat : | U 31 |
| Commander : | Habekost |
| Grid : | AM 3826 |
| presumed target type : | --- |
| presumed tonnage : | ---- --- |
| presumed result : | hit not ascertained |
| Used weapon(s) : | Sea mine(s) |
| Date of sinking : | 04.12.1939 |
| Time of sinking : | 07:52 |
| Nationality of target : | British |
| Actual type of target : | Battleship |
| Name of target : | Nelson |
| Year of launch : | 1925 |
| Actual tonnage : | 33950 ts |
| Actual result : | damaged |
| Position of target : | Loch Ewe |