MK 18 fleet system and software support

Ended Awarded Last action

Contract number
N6133125F0146
Awardee
Awarding agency
Obligated
$730,332

Award facts

Contract value 68% obligated
  • $730,332.00 Current, with exercised options
  • $1,068,134.42 Potential, with all options
Completion date 100% complete
Current and potential, with all options
Contracting staff
Set-aside
No set-aside
Competition
Not Competed Only One Source
Pricing
Cost Plus Fixed Fee
Place of performance
Pocasset, MA 02559, USA
Legislative mandates

Award details come from SAM.gov/FPDS.

Transactions

Action Obligated Date
Other Administrative Action P00002 $0
Other Administrative Action P00001 $0
Original award MK 18 fleet system and software support reference HII proposal q-2025-201-REV 0-dated 07/10/2025 to include SOW exceptions and data rights (if applicable) $730,332

About this award

HII Unmanned Systems, Inc., a division of Huntington Ingalls Industries specializing in unmanned maritime systems, has been awarded a delivery order valued at $1.07M by the Naval Sea Systems Command (NAVSEA) for MK 18 Fleet System and Software Support. The contract, awarded on August 1, 2025, with an ultimate completion date of July 31, 2026, is structured as a Cost Plus Fixed Fee delivery order with no set-aside designation, reflecting the contractor's strong competitive positioning. Work will be performed at the company's facility in Pocasset, Massachusetts. This delivery order is issued under one of HII Unmanned Systems' existing indefinite delivery vehicles with NAVSEA—specifically the $74.7M single-award IDV for MK 18 MOD 2 Increment II Upgrade Hardware—which provides the Navy with sustained technical and engineering support for its fleet of MK 18 unmanned underwater vehicles.

The MK 18 is a critical autonomous underwater vehicle platform utilized by the Navy for submarine-based payload delivery and autonomous operations in support of fleet operations and special warfare missions. This delivery order provides ongoing fleet-level system maintenance, software updates, and technical support services essential to sustaining operational readiness of the Navy's MK 18 inventory. HII Unmanned Systems' established role as the primary developer and integrator for MK 18 systems, combined with its extensive partnership network including subcontractors such as Leidos and Booz Allen Hamilton, positions the company as a critical enabler of the Navy's autonomous maritime capabilities strategy.

Quick answers

Who was awarded contract N6133125F0146?

N6133125F0146 was awarded to HII Unmanned Systems, Inc. by Naval Sea Systems Command (Department of the Navy) on August 1, 2025.

How much is contract N6133125F0146 worth?

The government has obligated $730,332 on N6133125F0146. Its potential value, with all options, is $1,068,134.

Is contract N6133125F0146 an order under another contract?

Yes. N6133125F0146 is a delivery order under N6133125D1001, an indefinite delivery contract.

Was contract N6133125F0146 competed?

The extent of competition for N6133125F0146 was not competed.

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