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L3Harris Technologies awarded $139 million Navy contract for submarine masts

9/5/2026

A $139 million contract modification puts L3Harris Technologies (LHX) in focus on the defense procurement tape, with the U.S. Navy the contracting authority and submarine masts the named deliverable.

The modification structure places this work inside an existing program rather than a fresh competitive solicitation. The confirmed figure is $139 million. L3Harris Technologies is the named contractor.

Submarine masts are a platform-critical hardware category for submerged naval operations, covering the above-waterline systems that connect a vessel to its operating environment while it remains below the surface.

The Navy's choice to proceed through modification rather than re-compete keeps the existing supply relationship intact, and that continuity carries its own operational signal about the incumbent's standing on the program.

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