Peacock was laid down 29 January 1953, as AMS-198, by the Harbor Boat Building Company, Terminal Island, California; launched, 19 June 1954; sponsored by Miss B. Rechenmacher; reclassified as a coastal minesweeper, MSC-198, 7 February 1955; commissioned 16 March 1955.

This unique construction rendered the ship safe from magnetic mines and was the reason for her very high initial cost of approximately $3,500.000.

Upon completion of fitting out, the Peacock conducted training and minesweeping exercises along the California coast until 4 February 1956, when she departed for her first deployment to the Far East.

[2] Peacock was a coastal minesweeper capable of sweeping both moored and bottom sea mines of either contact or influence variety.

Peacock was struck from the Naval Register, 1 July 1975 and disposed of through the Defense Reutilization and Marketing Service for scrap, 1 September 1976.