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28--Duct Assembly

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Combined Synopsis/Solicitation · Dept of Defense · Responses due Nov 4, 2026

28--Duct Assembly is a combined synopsis/solicitation posted on SAM.gov by Dept of Defense (Dla Aviation) on Oct 29, 2026, under NAICS 336412 (Aircraft Engine and Engine Parts Manufacturing). It is set aside: Small Business Set Aside - Total. Responses are due Nov 4, 2026.

Notice type
Combined Synopsis/Solicitation
Agency
Dept of Defense
Office
Defense Logistics Agency / Dla Aviation / Dla Av Richmond / Dla Aviation
Solicitation number
SPE4A527Q0056
Industry (NAICS)
336412 Aircraft Engine and Engine Parts Manufacturing
Set-aside
Small Business Set Aside - Total
Place of performance
Not stated
Posted
Oct 29, 2026
Responses due
Nov 4, 2026 (2 days left)

The full description, attachments and response instructions are on SAM.gov: read this notice on SAM.gov. To respond you need an active SAM.gov registration, which is free.

What this combined synopsis/solicitation means

A combined synopsis/solicitation is used mainly for commercial products and services: the notice itself is the solicitation, so you can prepare and submit an offer now, before the response date.

  1. Read the full solicitation and every attachment on SAM.gov, including the scope of work and evaluation criteria.
  2. Confirm you are eligible: active SAM.gov registration, the NAICS size standard and any set-aside.
  3. Submit questions to the contracting officer before the question deadline, if there is one.
  4. Prepare your response exactly as instructed and submit it before the deadline.

Who wins aircraft engine and engine parts manufacturing government contracts

Federal agencies obligated $30B on contracts under NAICS 336412 from FY2024 to FY2026, including $9.7B in FY2026. The largest contractors in this industry, possible competitors or teaming partners for this bid:

  1. RTX Corporation: $13.7B
  2. General Electric Company: $4.6B
  3. Rolls-Royce Corporation: $2.8B
  4. General Electric Company: $2.3B
  5. The Boeing Company: $2.2B

Recent aircraft engine and engine parts manufacturing contract awards

Recent contract awards under NAICS 336412
Start dateRecipientAgency and descriptionAmountRecord
Sep 27, 2026High Range Aviation, Inc.Department of AgricultureORDERING PERIOD SIX: OCTOBER 1, 2026 TO DECEMBER 31, 2026 (PARTIAL YEAR) FOR HELICOPTER INSPECTIONS, MAINTENANCE AND REPAIR SERVICES WITH HIGH RANGE AVIATION (HELICOPTER)$45,00012639526F0956
Sep 17, 2026General Electric CompanyDepartment of Homeland SecurityCT7-9C3 ENGINE ASSEMBLY AND SPARE COMPONENTS FOR THE HC-144 AIRCRAFT.$101,39770Z03826FA0000188
Sep 17, 2026General Electric CompanyDepartment of Homeland SecurityREPAIR OF GG ROTOR AND STATOR ASSEMBLY.$348,27170Z03826FA0000177
Sep 16, 2026Rolls-Royce CorporationDepartment of Homeland SecurityPROCUREMENT OF VARIOUS CRITICAL SPARE PARTS TO BE USED ON THE HC-130J AIRCRAFT$16,955,15170Z03826CC0000001
Sep 11, 2026General Electric CompanyDepartment of Homeland SecurityCT7-9C3 ENGINE ASSEMBLY AND SPARE COMPONENTS FOR THE HC-144 AIRCRAFT.$3,633,76870Z03826FA0000179

More: government aircraft engine and engine parts manufacturing contracts · NAICS 336412

DoD contract spending

The Department of Defense obligated $1.3T on contracts from FY2024 to FY2026. Its largest contractors were Lockheed Martin Corporation, Electric Boat Corporation, Lockheed Martin Corporation. What it buys most: aircraft manufacturing, engineering services, research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology).

See Department of Defense contracts: top contractors, what it buys and recent awards.

Similar open bids: aircraft engine and engine parts manufacturing

More open government contracts

Guides for this bid

Frequently asked questions

When is the response deadline for SPE4A527Q0056?
Responses are due Nov 4, 2026. Always confirm the date and time zone in the notice on SAM.gov, since agencies sometimes extend deadlines with an amendment.
Who can respond to 28--Duct Assembly?
This notice is set aside for any business that is small under the SBA size standard for the contract's NAICS code. You also need an active SAM.gov registration, which is free.
Who usually wins aircraft engine and engine parts manufacturing government contracts?
Under NAICS 336412, the largest federal contractors from FY2024 to FY2026 were RTX Corporation ($13.7B), General Electric Company ($4.6B), Rolls-Royce Corporation ($2.8B).

Source: SAM.gov Contract Opportunities, last checked Oct 30, 2026. Independent website. Not affiliated with any government agency.