The Boeing Company holds a federal contract worth $2,530,079,189 from the National Aeronautics and Space Administration for the Space Launch System (SLS) Stages Production and Evolution Contract, known as SPEC, federal contracting records show.

The contract, numbered 80MSFC20C0052, covers Boeing's role as the prime contractor for production and ongoing development of the SLS core stages — the main structural backbone of NASA's heavy-lift rocket system supporting the agency's Artemis program of human lunar exploration.

Boeing has served as the SLS core stage prime contractor since the rocket system's inception. The SLS, which uses engines derived from Space Shuttle heritage hardware, is NASA's primary vehicle for sending crewed missions to the Moon and, ultimately, missions toward deep-space destinations including Mars.

The SPEC contract encompasses core stage manufacturing at NASA's Michoud Assembly Facility in New Orleans, Louisiana, as well as ongoing engineering evolution work to support future, more capable variants of the SLS architecture.

At $2.53 billion, the Boeing SPEC contract is one of NASA's largest active production agreements, reflecting the scope and complexity of manufacturing the rocket stages required for Artemis-class missions.

Source: USASpending.gov