The USS McNair (DD-679) was a Fletcher-class destroyer of the United States Navy. The ship was laid down 30 June 1943 by the Federal Shipbuilding & Dry Dock Co., Kearny, N.J.; launched 14 November 1943; sponsored by Mrs. F. V. McNair, Jr., daughter-in-law of Rear Admiral McNair; and commissioned on 30 December 1943, Commander M. L. McCullough, Jr., in command. In August 1963, the USS McNair (DD-679) entered the Philadelphia Navy Yard for pre-inactivation overhaul. It was stricken from the Naval Vessel Register on 1 December 1974. Asbestos exposure occurred aboard the USS McNair (DD-679) in its poorly ventilated boiler rooms and engineering spaces. When asbestos is disturbed it produces airborne fibers or dust. If this is inhaled or swallowed the fibers penetrate the lungs and abdomen and lodge themselves in the mesothelium, which is the tissue lining that protects the body's major internal organs. These asbestos fibers cause irritation which can lead to the development of lung cancer, mesothelioma, asbestosis, esophageal cancer, throat cancer, gastrointestinal cancer, colorectal cancer, pulmonary fibrosis, pleural plaques, diffuse pleural thickening, COPD, emphysema, tuberculosis, chronic bronchitis, pleural effusion, pneumonitis, histoplasmosis, or rounded atelectasis.