|Ordered||14 Feb 1940|
|Laid down||5 Jun 1941||Deutsche Werft AG, Hamburg (werk 313)|
|Launched||30 Dec 1941|
|Commissioned||21 Mar 1942||Oblt. Paul Hartwig|
|Successes||8 ships sunk, total tonnage 26,383 GRT|
1 warship sunk, total tonnage 900 tons
Sunk 21 Nov 1942 in the North Atlantic south-west of Ireland, in position 46.16N, 17.09W, by depth charges from Albacore aircraft (Sqdn 817/I) of the British carrier HMS Victorious. 1 dead and 52 survivors.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-517 did not suffer any casualties (we know of) until the time of her loss.