3/PG-3) was a member of the Yorktown class of steel-hulled, twin-screw gunboats in the United States Navy in the late 19th and early 20th centuries.

Concord cruised on the Asiatic Station—interrupted only by a short stint on the Alaskan sealing patrol—from 1893 until May 1896, when she began a year out of commission at San Francisco.

The Yorktown class gunboats—unofficially considered third-class cruisers—were the product of a United States Navy design attempt to produce compact ships with good sea-keeping abilities and, yet, able to carry a heavy battery.

The hull for Concord was sublet by Palmer to the Delaware River Iron Shipbuilding & Engine Works and built to the Navy's Bureau of Construction and Repair design.

The mechanical design was patterned after the layout for older sister ship Yorktown developed by William Cramp & Sons .

Her steel hull had an average draft of 14 feet (4 m),[4] which was expected to give her the ability to escape from larger ships into shallow water.

It was outfitted with a steam-powered steering wheel, a telegraph, and speaking tubes; it was protected by 2 inches (51 mm) of steel armor plate.

[5] According to a 1902 Bureau of Ordnance publication, an armor-piercing round fired from a 6-pounder gun could penetrate 2 inches (51 mm) of armor at a distance of 1,000 yards (910 m).

[3] Returning to New York on 13 June 1892, Concord made another cruise to the West Indies late that year, and arrived back at Norfolk, Virginia, on 5 December.

She gathered hydrographic information to correct Bering Sea charts and conduct scientific observations of the fur seals.

With the declaration of war between Spain and the United States in April, Concord joined Admiral George Dewey's squadron at Mirs Bay near Hong Kong on the 24th and sailed for the Philippines.

Her duty consisted of patrolling the coast to restrict insurgent movements and shipping; bombarding various strongholds; and aiding United States Army operations.

[3] Concord served as station ship at Guam from 2 January to 10 September 1909, then sailed to Puget Sound Navy Yard where she arrived on 11 October.

She was transferred to the Public Health Service of the Treasury Department on 15 June 1914 and served as a stationary quarantine barge at Astoria, Oregon.

The Seattle Times of 15 August stated: "Two six-inch guns from the United States cruiser Concord which saw active service at the battle of Manila, yesterday afternoon were brought to Seattle from Bremerton under the direction of the United Spanish War Veterans, to be mounted in Woodland Park in the near future.