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

Canonical: https://abierto.us/opportunities/n0002420c5519p00037

- Solicitation number: N00024-20-C-5519-P00037
- Notice type: Award notice (first published as special notice)
- Status: Awarded to Northrop Grumman Systems Corporation Linthicum Heights for $783,025,377.00
- Department: Department of the Navy
- Agency: Department of the Navy
- Contracting office: NAVSEA HQ (N00024)
- NAICS: 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- Product or service code: 5865 Electronic Countermeasures, Counter-Countermeasures and Quick Reaction Capability Equipment
- Place of performance: Baltimore, Maryland
- County: City of Baltimore (FIPS 24510). https://abierto.us/counties/city-of-baltimore-md-24510
- City: Baltimore. https://abierto.us/cities/baltimore-md-2404000
- First posted: November 17, 2025
- Last posted: January 26, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/eb1ae523fcd14dcb8f26c6b32602c8ca/view

## Description

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

- November 17, 2025: Special notice, due December 2, 2025 at 4:00 PM EST. Notice 15b54cd24cc44a599ffcde1b464edd8b. https://sam.gov/workspace/contract/opp/15b54cd24cc44a599ffcde1b464edd8b/view
- November 17, 2025: Special notice, due December 2, 2025 at 4:00 PM EST. Notice 1dc054d1ffc542bb905382bceec3fe4a. https://sam.gov/workspace/contract/opp/1dc054d1ffc542bb905382bceec3fe4a/view
- December 1, 2025: Special notice, due December 2, 2025 at 4:00 PM EST. Notice 49fda41a89d848bfbe44aec0db25f850. https://sam.gov/workspace/contract/opp/49fda41a89d848bfbe44aec0db25f850/view
- December 19, 2025: Award notice. Notice 6eb6babbddbe41c6b25f06d690fba6b0. https://sam.gov/workspace/contract/opp/6eb6babbddbe41c6b25f06d690fba6b0/view
- January 26, 2026: Award notice. Notice 088cf538c3a144eeaf912e32606f53a9. https://sam.gov/workspace/contract/opp/088cf538c3a144eeaf912e32606f53a9/view
- January 26, 2026: Award notice. Notice 08e99a21f7c44583b6b1daa9826f08d9. https://sam.gov/workspace/contract/opp/08e99a21f7c44583b6b1daa9826f08d9/view
- January 26, 2026: Award notice. Notice 8eafb2afa36940738ae37f1a62cc8caf. https://sam.gov/workspace/contract/opp/8eafb2afa36940738ae37f1a62cc8caf/view
- January 26, 2026: Award notice. Notice ac5bad8d9c304e26ac39f1035bb8c84d. https://sam.gov/workspace/contract/opp/ac5bad8d9c304e26ac39f1035bb8c84d/view
- January 26, 2026: Award notice. Notice b40f188708ed44e89b578a418a47bbe5. https://sam.gov/workspace/contract/opp/b40f188708ed44e89b578a418a47bbe5/view
- January 26, 2026: Award notice. Notice eb1ae523fcd14dcb8f26c6b32602c8ca. https://sam.gov/workspace/contract/opp/eb1ae523fcd14dcb8f26c6b32602c8ca/view

## Points of contact

- Ryan Brophy, ryan.brophy@navy.mil, 2027812605
- Matthew Brimmer, matthew.m.brimmer.civ@us.navy.mil, 2024277445

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/n0002420c5519p00037.