SS-329, originally named Bonaci, was renamed Chub on 24 September 1942 and launched 18 June 1944 by Electric Boat Co., Groton, Conn.; sponsored by Mrs. T. A. Risch; and commissioned 21 October 1944.

Her first war patrol, in Tonkin Gulf and the Java and South China Seas, found her skill and determination tried in four hairbreadth escapes from destruction.

On 29 March, she began a long surface chase after an escort group, which she carried through the next day, even though forced six times to go deep by enemy aircraft.

Her third war patrol found her again in the Java Sea, sinking a number of small craft, although again and again attacked by the remnant of Japanese air strength.

After overhaul at San Francisco she put to sea 4 March 1948 to call at New London, then crossed the Atlantic and Mediterranean to İzmir, Turkey, arriving 11 May.