| Navy | The US Navy |
| Type | Submarine |
| Class | Balao |
| Pennant | 333 |
| Built by | Electric Boat Co. (Groton, Connecticut, U.S.A.) |
| Ordered | |
| Laid down | 4 Nov 1943 |
| Launched | 6 Aug 1944 |
| Commissioned | 9 Dec 1944 |
| End service | 16 Nov 1950 |
| Loss position | |
| History | Decommissioned and transferred to Turkey 16 November 1950. |
Commands listed for USS Bumper (333)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | Cdr. Joseph Warford Williams, Jr., USN | 9 Dec 1944 | Aug 45 ? |
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Noteable events involving Bumper include:
19 Feb 1945
USS Bumper (Cdr. J.W. Williams, Jr.) departs New London bound for Key West.
15 Mar 1945
USS Bumper (Cdr. J.W. Williams, Jr.) departs the Panama Canal Zone bound for Pearl Harbour.
1 Apr 1945
USS Bumper (Cdr. J.W. Williams, Jr.) arrives at Pearl Harbour.
22 Apr 1945
USS Bumper (Cdr. J.W. Williams, Jr.) departs Pearl Harbour for her 1st war patrol. She is ordered to patrol in the South China Sea.
4 May 1945
USS Bumper (Cdr. J.W. Williams, Jr.) toppes off with fuel at Saipan.
14 Jun 1945
USS Bumper (Cdr. J.W. Williams, Jr.) ends her 1st war patrol at Subic Bay, Philippines.
10 Jul 1945
USS Bumper (Cdr. J.W. Williams, Jr.) departs Subic Bay for her 2nd war patrol. She is ordered to patrol in the Gulf of Siam.
15 Jul 1945
USS Bumper (Cdr. J.W. Williams, Jr.) sinks a Japanese sailing vessel with gunfire in the Gulf of Siam in position 06º39'N, 101º41'E. (see map)
19 Jul 1945
USS Bumper (Cdr. J.W. Williams, Jr.) torpedoes and sinks the Japanese fleet tanker Kyoei Maru No.3 (1189 GRT) in the Gulf of Siam in position 08º08'N, 103º40'E. (see map)
20 Jul 1945
USS Bumper (Cdr. J.W. Williams, Jr.) sinks the Japanese guardboat Kyoraku Maru No.3 (38 GRT) in the Gulf of Siam in position 08º08'N, 103º40'E. (see map)
5 Aug 1945
USS Bumper (Cdr. J.W. Williams, Jr.) sinks three small Japanese vessels with gunfire north of Banka Island in position 01º36'S, 105º24'E. (see map)
15 Aug 1945
USS Bumper (Cdr. J.W. Williams, Jr.) ends her 2nd war patrol at Fremantle.