This opportunity involves the fabrication and delivery of two 22-inch exhaust expansion joint assemblies for the USCGC POLAR STAR’s main propulsion generator system. The contractor must provide all labor, materials, and testing, with delivery required by July 31, 2026, to Seattle, Washington. The assemblies must be built to strict government drawings and standards, including ASTM F1120, using only new materials. No budget amount is specified in the description. Performance of services is limited to fabrication and shipping only, with no on-site installation required.