LLTM & Advanced Engineering UCA - Construction of four (4) Medium Landing Ships (LSMs) Block 1
Awarded Limited / Sole Source Justification Posted
- Solicitation number
- N00024-26-R-2430
- Agency
-
Naval Sea Systems Command
Department of the Navy, Department of Defense
- Set-aside
- No set-aside
Opportunity facts
- Contract number
- N00024-26-C-2430 Federal contract award
- Awardee
- Marinette Marine Corporation
- NAICS code
- 336611 Ship Building and Repairing
- PSC
- 1905 Combat Ships And Landing Vessels
- Place of performance
- Marinette, Wisconsin, United States
Notice details come from SAM.gov. Updated .
About this opportunity
The Naval Sea Systems Command (NAVSEA) issued this Limited/Sole Source Justification Notice on April 15, 2026, in support of the Medium Landing Ship (LSM) Block 1 construction program, with the related contract N00024-26-C-2430 awarded on April 14, 2026. The procurement authorizes the acquisition of standardized propulsion and power generation equipment for up to fifteen LSMs, specifically Caterpillar 3516C main propulsion engines (two per ship), Reintjes WAF/LAF 873 main reduction gears (two per ship), and Caterpillar C18 IMO Tier II generator sets with Leroy Somer alternators (four per ship). NAVSEA justified the sole source approach under 10 U.S.C. 3204(a)(1) based on the critical need for fleet-wide equipment standardization to reduce total ownership costs, minimize spare parts inventory complexity, ensure personnel interoperability and training consistency, and avoid substantial engineering redesign costs and construction delays across multiple shipyards. The Class Justification and Approval is valid through September 30, 2031, and covers procurement activities with Bollinger Shipyards, L.L.C., Marinette Marine Corporation (doing business as Fincantieri Marinette Marine), and Vessel Construction Managers, with pricing determined by quote. While the awarded vendor and contract amount remain redacted in the public notice, the justification document has been released to serve as a market survey for potential subcontracting opportunities.
Notice text
See related notice(s): N00024-26-C-2430
See attached redacted Class Justification & Approval per FAR 6.302-1 as required by 10 U.S.C. 3204(a)(1).
Awarded contract N00024-26-C-2430 to unknown vendor for unknown amount on 2026-04-14.
Files
| File | Type | Posted |
|---|---|---|
| N00024_22597.pdf |
Notice history
| Notice | Type | Posted |
|---|---|---|
| This notice | Limited / Sole Source Justification | |
| Construction of the Medium Landing Ship (LSM) Block 1 | Limited / Sole Source Justification | |
| LLTM & Advanced Engineering UCA - Construction of four (4) Medium Landing Ships (LSMs) Block 1 | Award Notice |
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