| Navy | The Soviet Navy |
| Type | Submarine |
| Class | M (Malyutka) |
| Pennant | |
| Mod | 2nd group (Type VI modified) |
| Built by | 61 Kommunara (Nikolajev, U.S.S.R.) / Yard 200 |
| Ordered | |
| Laid down | 25 Mar 1935 |
| Launched | 20 Nov 1935 |
| Commissioned | 19 Oct 1936 |
| End service | |
| History | Pacific fleet. Renamed M-48 on 27 October 1939. |
We don't have any commands listed for USSR M-56
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