| Navy | The Royal Navy |
| Type | Motor minesweeper |
| Class | MMS I |
| Pennant | J 540 |
| Built by | Richards Ironworks Ltd. (Lowestoft, England, U.K.) |
| Ordered | 13 Feb 1940 |
| Laid down | |
| Launched | 15 Mar 1941 |
| Commissioned | 10 Jun 1941 |
| End service | |
| History | Sold in 1946 |
Commands listed for HMS MMS 40 (J 540)
Please note that we're still working on this section.
| Commander | From | To | ||
| 1 | W K Alexander, RNVR | 30 May 1941 | 27 Aug 1942 | |
| 2 | T/Lt. Norman Bartlett Lewis, RNVR | 27 Aug 1942 | mid 1944 | |
| 3 | A/Ch.Skr. (A/Skr.Lt.) Arthur Charles Offord, RNR | 27 Feb 1945 | mid 1946 | |
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