Editing USS Threadfin (section)

==Turkish Navy service==
{{other ships| TCG Birinci İnönü}}
After successive years of routine operations in the [[Caribbean Sea]] and [[Atlantic Ocean]], ''Threadfin'' was placed out of commission on 18 August 1972 and transferred to [[Turkey]] that same day. She served in the [[Turkish Navy]], on loan, as '''TCG ''Birinci İnönü'' (S346)''' ("First Inonu") until the following summer. She was the third submarine of that name and commemorated the Turkish victory at the [[First Battle of İnönü]] in January 1921. On 1 August 1973, her name was struck from the American [[Naval Vessel Register]]. Two weeks later, the loan expired, she was returned to the [[United States Navy]], and sold to [[Turkey]].<ref>Gardiner, Robert, '' Conway's All the World's Fighting Ships 1947–1982, Pt I: The Western Powers'' (1982) Naval Institute Press, Annapolis {{ISBN|978-0851772257}} p121</ref> In mid-1998 she was still in active service in the Turkish Navy. She has reportedly been decommissioned since then.