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Award notice, first published as special notice

SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production, Ancillary Equipment, and Spares

N00024-20-C-5519-P00037

Department of the Navy, NAVSEA HQ. Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing.

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Awarded

Northrop Grumman Systems Corporation Linthicum Heights

$783,025,377.00 on the award notice, December 12, 2025, contract N00024-20-C-5519-P00037

Description

As published on SAM.gov.

Northrop Grumman Systems Corporation, Mission Systems Sector, Linthicum Heights, Maryland, is awarded a $334,419,034 firm-fixed price modification to previously-awarded contract N00024-20-C-5519 for production of Surface Electronic Warfare Improvement Program (SEWIP) Block 3 Hemisphere and Quadrant Configuration subsystems. SEWIP is an evolutionary development and acquisition program tasked with continuously upgrading the AN/SLQ-32(V) Electronic Warfare (EW) system aboard U.S. Navy (USN) surface ships.

This contract modification is for the delivery of additional quantities of SEWIP Block 3 Hemisphere and Quadrant Configuration subsystems. This contract modification includes options, which if exercised, would bring the cumulative value of this contract action to $783,025,378.

Work will be performed in Baltimore, Maryland, (33%), Tampa, Florida (10%), Chelmsford, Maryland (8%), Sykesville, Maryland (7%), San Diego, California (5%), Hudson, New Hampshire (4%), Woburn, Massachusetts (4%), Rochester, New York (3%), Nashua, New Hampshire (3%), Glendale, Arizona (2%), Denver, Colorado (2%), Washington, North Carolina (2%), Longmont, Colorado (1%), Cincinnati, Ohio (1%), and miscellaneous locations – each less than 1% (15%) and is expected to be completed by December 2029. If all options are exercised, work will continue through April 2030.

Publications

Every notice SAM.gov issued under this solicitation number, oldest first. Each is a separate record on SAM.

  1. November 17, 2025

    Special notice

    Contract Modification for FY26 SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production, Ancillary Equipment, and Spares

    Due December 2, 2025 at 4:00 PM EST. SAM.gov, notice 15b54cd24cc44a599ffcde1b464edd8b

  2. November 17, 2025

    Special notice

    Pre-Award Synopsis: Contract Modification for FY26 SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production, Ancillary Equipment, and Spares

    Due December 2, 2025 at 4:00 PM EST. SAM.gov, notice 1dc054d1ffc542bb905382bceec3fe4a

  3. December 1, 2025

    Special notice

    Pre-Award Synopsis: Contract Modification for FY26 SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production, Ancillary Equipment, and Spares

    Due December 2, 2025 at 4:00 PM EST. SAM.gov, notice 49fda41a89d848bfbe44aec0db25f850

  4. December 19, 2025

    Award notice, originally special notice

    Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377. SAM.gov, notice 6eb6babbddbe41c6b25f06d690fba6b0

  5. January 26, 2026

    Award notice

    Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377. SAM.gov, notice 088cf538c3a144eeaf912e32606f53a9

  6. January 26, 2026

    Award notice

    Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377. SAM.gov, notice 08e99a21f7c44583b6b1daa9826f08d9

  7. January 26, 2026

    Award notice

    Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377. SAM.gov, notice 8eafb2afa36940738ae37f1a62cc8caf

  8. January 26, 2026

    Award notice

    Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377. SAM.gov, notice ac5bad8d9c304e26ac39f1035bb8c84d

  9. January 26, 2026

    Award notice

    Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377. SAM.gov, notice b40f188708ed44e89b578a418a47bbe5

  10. January 26, 2026

    Award notice

    Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377. SAM.gov, notice eb1ae523fcd14dcb8f26c6b32602c8ca

Points of contact

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