USS SC-521 was a SC-497-class submarine chaser that served in the United States Navy during World War II. She was laid down on 5 May 1941 by the Annapolis Yacht Yard, Inc. in Annapolis, Maryland and launched on 1 February 1942. She was commissioned on 15 April 1942. She foundered on 10 July 1945 off Santa Cruz, Solomon Islands.
USS SC-632 was a SC-497 class submarine chaser that served in the United States Navy during World War II. She was laid down on 23 February 1942 by the Mathis Yacht Building Co. in Camden, New Jersey and launched on 25 June 1942. She was commissioned on 2 September 1942. She foundered on 16 September 1945 off the coast of Okinawa. Her hulk was destroyed on 9 March 1948.
USS SC-694 was a SC-497 class submarine chaser that served in the United States Navy during World War II. She was laid down on 21 March 1942 by the Daytona Beach Boat Works in Daytona Beach, Florida, and launched on 25 May 1942. She was commissioned on 9 September 1942. She was bombed and sunk by German Ju 88 dive bombers off the coast of Palermo, Sicily, on 23 August 1943.
The SC-497-class submarine chasers were a class of 438 submarine chasers built primarily for the United States Navy from 1941–1944. The SC-497s were based on the experimental submarine chaser, USS SC-453. Submarine chasers of this variety were collectively nicknamed "the splinter fleet" due to their wooden hulls.
USS SC-497 was a SC-497 class submarine chaser that served in the United States Navy and later the Free French Navy during World War II. She was originally laid down as PC-497 on 29 November 1941 by the Westergard Boat Works in Rockport, Texas, and launched on 4 July 1941. She was commissioned as USS PC-497 on 16 October 1942. She was later reclassified as a SC-497 class submarine chaser and renamed SC-497. She was transferred to the Free French Navy as part of the Lend-Lease program on 18 March 1944 as CH-96. The transfer was made permanent on 15 August 1944. She was renamed CH-724 in 1952 and later P-724 before being withdrawn from service on 23 October 1980. Her exact fate is unknown.
USS SC-498 was a SC-497 class submarine chaser that served in the United States Navy, and later the Free French Navy, during World War II.
USS SC-500 was a United States Navy SC-497-class submarine chaser in commission from 1942 to 1945 during World War II. She later served in the Soviet Navy as BO-319.
USS SC-1, prior to July 1920 known as USS Submarine Chaser No. 1 or USS S.C. 1, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-2, until July 1920 known as USS Submarine Chaser No. 2 or USS S.C. 2, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-3, until July 1920 known as USS Submarine Chaser No. 3 or USS S.C. 3, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-20, until July 1920 known as USS Submarine Chaser No. 20 or USS S.C. 20, was an SC-1-class submarine chaser built for the United States Navy during World War I. SC-17 was a wooden-hulled 110-foot submarine chaser built at the New York Navy Yard at Brooklyn, New York. She was commissioned on 18 October 1917 as USS Submarine Chaser No. 20, abbreviated at the time as USS S.C. 20.
USS SC-23, until July 1920 known as USS Submarine Chaser No. 23 or USS S.C. 23, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-26, until July 1920 known as USS Submarine Chaser No. 26 or USS S.C. 26, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-27, during her service life known as USS Submarine Chaser No. 27 or USS S.C. 27, was an SC-1-class submarine chaser built for the United States Navy during World War I. She later served in the United States Coast Guard as USCGC Richards.
USS SC-39, until July 1920 known as USS Submarine Chaser No. 39 or USS S.C. 39, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-40, until July 1920 known as USS Submarine Chaser No. 40 or USS S.C. 40, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-41, until July 1920 known as USS Submarine Chaser No. 41 or USS S.C. 41, was an SC-1 class submarine chaser built for the United States Navy during World War I.
USS SC-43, until July 1920 known as USS Submarine Chaser No. 43 or USS S.C. 43, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-44, until July 1920 known as USS Submarine Chaser No. 44 or USS S.C. 44, was an SC-1-class submarine chaser built for the United States Navy during World War I.
USS SC-696 was an SC-497-Class Submarine chaser of the United States Navy during World War II. She was sunk on 23 August 1943 by German dive bombers.
United States 
