National Steel and Shipbuilding Company
| Company type | Subsidiary | 
|---|---|
| Industry | Shipbuilding | 
| Founded | 1905 | 
| Headquarters | San Diego, California, US | 
| Number of locations | San Diego, California; Norfolk, Virginia; Mayport, Florida; Bremerton, Washington | 
| Key people | David Carver (President) | 
| Parent | General Dynamics | 
| Subsidiaries | TIMSA | 
| Website | www | 
National Steel and Shipbuilding Company, commonly referred to as NASSCO, is an American shipbuilding company with four shipyards located in San Diego, Norfolk, Bremerton, and Mayport. It is a division of General Dynamics. NASSCO owns a subsidiary manufacturing facility with TIMSA in Mexicali, Mexico. The San Diego shipyard specializes in constructing commercial cargo ships and auxiliary vessels for the US Navy and Military Sealift Command; it is the only new-construction shipyard on the West Coast of the United States. NASSCO performs ship repairs and conversions for the United States Navy in all four shipyard locations: San Diego, Norfolk, Bremerton, and Mayport.