--- title: SC21 slug: sc21 qid: snapshot: enwiki-001210328252 content_hash: license: CC BY-SA 4.0 source: https://en.wikipedia.org/w/index.php?oldid=1210328252 tags: [13343204, 23118434, 3566086, 4410601] --- # SC21 > [!note] Provenance > Snapshot `enwiki-001210328252` · content root `…` > Derived from · Licensed CC BY-SA 4.0 SC21 or SC-21 may refer to: * SC21 (United States), a United States Navy program of the 1990s for new ship designs * , a United States Navy submarine chaser commissioned in 1917 and sold in 1921 * South Carolina Highway 21 * Scandium, chemical element, symbol Sc and atomic number 21 SC21 or SC-21 may refer to: SC21 (United States), a United States Navy program of the 1990s for new ship designs , a United States Navy submarine chaser commissioned in 1917 and sold in 1921 South Carolina Highway 21 Scandium, chemical element, symbol Sc and atomic number 21