Fragile Supply Chains Threaten U.S. Submarine Production

U.S. submarine production faces significant delays due to a fragile supply chain reliant on a shrinking number of sole-source suppliers for critical materials like propulsor castings, hull steels, and acoustic coatings. Despite $2.6 billion in funding since 2018, capacity and throughput gains remain unclear, threatening the Navy's ability to sustain Columbia- and Virginia-class submarine production amid increased demand from the AUKUS partnership.

This Wire brief sits within Fusion42's coverage of Defense Tech.