Depot Level Repair and Maintenance of AN/AQS-24 Sonar System and Related AMCM Systems
NAVSEA, naval shipyards and surface/undersea warfare centers · NAVAL SURFACE WARFARE CENTER
Capture briefs (a one-page, shareable copy of this page) are part of Pro. The CSV here holds the notice, its timeline and past awards.
Where this opportunity stands
Every notice posted under solicitation N61331-26-SN-Q06 in this department, oldest first.
Next steps for this stage
Standard steps for the notice type; not advice about this buyer.
- Answer the notice: this is when the requirement can still be shaped.
- Contact the contracting officer named on the notice.
- Check who won similar work; they are the likely bidders.
What the notice says
Special Notice N61331-26-SN-Q06 - Synopsis of AN/AQS-24 POP Extension The Naval Surface Warfare Center Panama City Division (NSWC PCD) intends to extend the Period of Performance for previously awarded sole sourced Indefinite Delivery Indefinite Quantity contract N6133122D0001 to Northrop Grumman Systems Corporation, 895 Oceanic Drive, Annapolis, MD 21401 for providing depot level support, which includes repair, maintenance, spares, engineering support, alteration, overhaul, production, modification, and upgrades of: AN/AQS-24 Sonar Detecting Set (all Variants) An/ALQ-141 countermine Set Commo… (show all)
n Post Mission Analysis (CMPA) Intermediate Level Test Equipment (ILTE) This requirement was determined that no other sources can satisfy this requirement without significant schedule, technical, and cost risk as identified in Justification notice 121005 and related notice N6133119R001301. The use of any other vendor would result in substantial duplication of cost to the Government that is not expected to be recovered through competition. Northrup was and is the original sole developer and original equipment manufacturer (OEM) of the AN/AQS24 system. The Government did not purchase or acquire the rights in data and design or a technical data package (TDP) to a sufficient level to support a competition for the AN/AQS-24 or the services needed to maintain, repair, or modify them. As the sole developer and OEM, Northrup, is the only source with sufficient in-depth knowledge of the AN/AQS-24 that could fabricate the parts, conduct repairs, and make the required design modifications to meet the Navy's requirements. Additionally, Northrup holds the proprietary data for the AN/AQS-24 system. Northrop Grumman Systems Corporation is the only source that can satisfy the Government's requirements. The extended period of performance will provide an additional 36 months that will occur from 18 March 2027 to 17 March 2030, if all options are exercised. The NAICS code is 334511 and PSC 5845. The primary POC is Contracting Officer: Charlotte Blue, charlotte.v.blue.civ@us.navy.mil and Matthew Hammond, matthew.a.hammond4.civ@us.navy.mil.
Who won similar work
20 award notices on SAM.gov in the last 24 months. Matched by: Same agency (NAVSEA, naval shipyards and surface/undersea warfare centers), same product/service code (PSC) 5845.
Single-winner award sizes (20): middle half $2.9M to $32.8M, median $6.6M; range $327K to $196.2M.
| Winner | Awards | Value | Last |
|---|---|---|---|
| MASSA PRODUCTS CORPORATION | 4 | $108.6M | Sep 24, 2026 |
| L3 TECHNOLOGIES INC · $LHX | 3 | $77.0M | Jul 10, 2026 |
| ADVANCED ACOUSTIC CONCEPTS, LLC | 1 | $196.2M | Sep 3, 2026 |
| HIGH BRIDGE SOLUTIONS, LLC | 1 | $43.0M | Dec 17, 2024 |
| Delphinus Engineering Inc. | 1 | $37.0M | Dec 8, 2025 |
| QORTEK INC | 1 | $12.4M | Jul 28, 2025 |
| KNUDSEN SYSTEMS INC. | 1 | $6.6M | Jan 30, 2026 |
| STARK PRECISION MACHINE, LLC | 1 | $6.5M | Oct 2, 2026 |
| TELEDYNE INSTRUMENTS INC | 1 | $4.7M | Oct 6, 2025 |
| Triangle Rubber Co. Inc. | 1 | $3.5M | Feb 13, 2025 |
Value counts new single-winner awards. "Shared" awards are multiple-award contracts that list every winner with the same total ceiling (same contract, or the same office, day and amount); that ceiling is not one company's win, so it is not added in. Contract modifications are not new awards and are not added in either. Notices whose amount is a placeholder such as $999,999,999 are not added in. Revenue next to a ticker is the company's revenue over the latest 12 months in its SEC filings.
- Oct 2, 2026STARK PRECISION MACHINE, LLC$6.5MHydrophone Housings for US & FMSNo listed company matched (Materiality N/A)
- Sep 24, 2026MASSA PRODUCTS CORPORATION$61.8MDT-574 HydrophonesNo listed company matched (Materiality N/A)
- Sep 3, 2026ADVANCED ACOUSTIC CONCEPTS, LLC$196.2MRemote Minehunting (RMH) ModuleNo listed company matched (Materiality N/A)
- Jul 10, 2026L3 TECHNOLOGIES INC$42.7MTowed Array Integrated Product Team (TAIPT) Telemetry and Engineering Services$LHX: no recent revenue figure in SEC filings (Materiality N/A)
- Apr 28, 2026GOODRICH CORPORATION$2.8MN3904024C0006- Sonar Dome RepairMateriality: <0.01% of $RTX revenue (Low) SEC
- Mar 10, 2026MASSA PRODUCTS CORPORATION$23.5MTR-302D and 355 Transducer ProductionNo listed company matched (Materiality N/A)
- Jan 30, 2026KNUDSEN SYSTEMS INC.$6.6MNext Generation FathometerNo listed company matched (Materiality N/A)
- Jan 15, 2026L3 Technologies, Inc$31.4MTowed Body (TB)-29C Thin Line Towed Array (TLTA)$LHX: no recent revenue figure in SEC filings (Materiality N/A)
- Dec 8, 2025Delphinus Engineering Inc.$37.0MVictoria Class Bow ArrayNo listed company matched (Materiality N/A)
- Nov 21, 2025SYQWEST LLC$2.8MDT-369 HydrophonesMateriality: 0.51% of $CTS revenue (Low) SEC
Materiality: one award's value as a share of the winner's revenue over the latest 12 months in its SEC filings (or its last fiscal year, as noted when you point at it). Low under 1%, Medium 1 to 5%, High 5% or more. Many awards are paid over several years, so this overstates a single year's share.
Competitive landscape
For the 8 most frequent past winners above. Lobbying is matched by the company's exact name or exact ticker; agencies are as named on the filings.
- 0 of these past winners lobbied Navy, Dept of or U.S. Marines since 2024 (0 filings)
- 0 of their lobbyists list a past Navy, Dept of or U.S. Marines job
- $234K from their corporate PACs since 2024 to members of House Committee on Appropriations, House Committee on Armed Services, Senate Committee on Appropriations, Senate Committee on Armed Services
- 0 foreign-agent (FARA) registrations
Policy around it
Bills the past winners named while lobbying this agency's issues, rules from the department, and executive orders that name the agency, last 12 months.
- 0 bills named on the past winners' lobbying filings
- 32 rules from the department in the last 12 months
- 0 executive orders naming the agency in the last 12 months
Market
For past winners matched exactly to a listed company. Insider trades are open-market buys and sells (Form 4) in the last 90 days, shown as facts; our own study found insiders do not reliably buy ahead of awards. A sale marked 10b5-1 was made under a trading plan set up in advance.
- 1 of the past winners are listed companies
- 0 insider buys and 0 insider sells at them in the last 90 days
Sources: SAM.gov notices and award notices; Senate LDA lobbying filings; FEC filings; FARA; Federal Register; congress.gov; SEC Form 4. Every row above links to its record.
Companies are matched to tickers by exact name, including the subsidiaries a company lists in its SEC filings. A company we could not match shows no market rows; that is a miss, not a finding.