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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /331

    NAICS Demand Lane

    Primary Metal Manufacturing, Contract Opportunities

    3,370 total opportunities (3,370 active) tied to NAICS 331 across federal, state, local, and forecast sources.
    NAICS 331Federal + SLED3.4K total
    View NAICS definition →
    Total Opportunities
    3.4K
    Across all indexed sources
    Active Estimate
    3.4K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 331.

    DEPARTMENT OF ENERGY

    CUSTOM ALUMINUM CORNER AND TOP EXTRUSIONS, MILL FINISH, 6005A-T61 ALLOY

    Active

    AI Summary

    UT-Battelle, LLC is seeking proposals for custom aluminum corner and top extrusions made from 6005A-T61 alloy for a Department of Energy project. This opportunity is a Request for Quotation (RFQ) and falls under FAR Part 13 Simplified Acquisition Procedures.

    TN

    Posted Oct 5, 2026Due Oct 12, 2026Combined Synopsis/SolicitationNAICS 331318Sol: PR509394
    View details→

    DEPT OF DEFENSE

    95--PLATE,METAL

    Active

    AI Summary

    The Department of Defense is seeking quotes for the procurement of metal plates (NSN 9515002044619) with a quantity of 2 units for each of two lines. The solicitation is an RFQ and will be available electronically. Quotes must be submitted electronically, and hard copies are not available.

    PA

    Posted Oct 5, 2026Due Oct 16, 2026Combined Synopsis/SolicitationNAICS 331110SBA Certified Women-Owned Small Business (WOSB) Program Set-Aside (FAR 19.15)Sol: SPE8E927T0093
    View details→

    DEPT OF DEFENSE

    61--WIRE,ELECTRICAL

    Active

    AI Summary

    The Department of Defense is soliciting quotes for 540 feet of electrical wire under NSN 6145014298500. This RFQ may lead to an Indefinite Delivery Contract with a one-year term. Quotes must be submitted electronically, and the solicitation is available online. Hard copies are not provided.

    OH

    Posted Oct 4, 2026Due Oct 19, 2026Combined Synopsis/SolicitationNAICS 331318Sol: SPE7M127U0021
    View details→

    DEPT OF DEFENSE

    61--WIRE,ELECTRICAL

    Active

    AI Summary

    The Department of Defense is seeking quotes for electrical wire (NSN 6145009140517) with a quantity of 1981 feet. This RFQ may lead to an Indefinite Delivery Contract with a one-year term. Quotes must be submitted electronically, and the solicitation is available online. Hard copies are not provided.

    OH

    Posted Oct 4, 2026Due Oct 19, 2026Combined Synopsis/SolicitationNAICS 331318Total Small Business Set-Aside (FAR 19.5)Sol: SPE7M227U0003
    View details→

    DEPT OF DEFENSE

    47--TUBE AND FITTINGS,M

    Active

    AI Summary

    The Department of Defense is seeking quotes for NSN 4710010695929, tube and fittings, with a total quantity of 68 units. Delivery is required to DLA Dist San Joaquin within specified timelines. All responsible sources are encouraged to submit electronic quotes for consideration.

    OH

    Posted Oct 4, 2026Due Oct 15, 2026Combined Synopsis/SolicitationNAICS 331210Total Small Business Set-Aside (FAR 19.5)Sol: SPE7M427T0100
    View details→

    DEPT OF DEFENSE

    METAL FOR OVERHEAD CRANE SYSTEM

    Active

    AI Summary

    This opportunity involves the procurement of ASTM standard structural steel and metal components for a new overhead crane system installation at Tinker AFB, OK. The solicitation is a combined synopsis/solicitation and is 100% set-aside for small businesses.

    OK

    Posted Oct 2, 2026Due Oct 16, 2026Combined Synopsis/SolicitationNAICS 331110Total Small Business Set-Aside (FAR 19.5)Sol: FA8126Q0065
    View details→

    DEPARTMENT OF ENERGY

    RRR300 NIOBIUM SHEET, RODS AND DISCS

    Active

    AI Summary

    The Department of Energy is seeking procurement for niobium sheets, rods, and discs in various sizes. This opportunity is categorized as a combined synopsis/solicitation and is classified under NAICS code 331410. Interested bidders should prepare to submit proposals accordingly.

    IL

    Posted Oct 2, 2026Due Oct 21, 2026Combined Synopsis/SolicitationNAICS 331410Sol: RFP387911
    View details→

    DEPT OF DEFENSE

    61--CABLE,RADIO FREQUENCY

    Active

    AI Summary

    The Department of Defense is seeking quotes for 37,000 feet of radio frequency cable under NSN 6145006608054. This RFQ may lead to an Indefinite Delivery Contract with a minimum order quantity of 5,550. Quotes must be submitted electronically, and hard copies are not available. Military specifications can be accessed o…

    OH

    Posted Oct 2, 2026Due Oct 16, 2026Combined Synopsis/SolicitationNAICS 331491Sol: SPE7M127U0006
    View details→

    DEPARTMENT OF ENERGY

    6061 ALUMINUM COMPONENTS

    Active

    AI Summary

    The Department of Energy is soliciting bids for the procurement of 6061 aluminum components, including round stock, rectangular bar stock, and sheets. Interested vendors should refer to the attached documents for specifications and requirements.

    WA

    Posted Oct 1, 2026Due Oct 7, 2026SolicitationNAICS 331318Sol: 0000958487
    View details→

    DEPT OF DEFENSE

    95--PLATE,METAL

    Active

    AI Summary

    The Department of Defense is seeking quotes for NSN 9515002044621, metal plates, with a quantity of 4 units. This opportunity is a combined synopsis/solicitation and is available electronically. Quotes must be submitted electronically, and hard copies are not provided. All responsible sources are encouraged to particip…

    PA

    Posted Oct 1, 2026Due Oct 13, 2026Combined Synopsis/SolicitationNAICS 331221Total Small Business Set-Aside (FAR 19.5)Sol: SPE8E427T0022
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    3,245
    sled
    122
    forecast
    3

    Related NAICS Codes

    • 3311, Iron and Steel Mills and Ferroalloy Manufacturing→
    • 33111, Iron and Steel Mills and Ferroalloy Manufacturing→
    • 331110, Iron and Steel Mills and Ferroalloy Manufacturing →
    • 3312, Steel Product Manufacturing from Purchased Steel→
    • 33121, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel→
    • 331210, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel→
    • 33122, Rolling and Drawing of Purchased Steel→
    • 331221, Rolled Steel Shape Manufacturing →
    • 331222, Steel Wire Drawing →
    • 3313, Alumina and Aluminum Production and Processing→

    Explore

    • 331 Definition→
    • Browse NAICS Codes→
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    About NAICS 331

    Primary Metal Manufacturing involves the smelting and refining of ferrous and nonferrous metals from ore, pig, or scrap and the production of metal shapes and forms. This sector includes establishments that produce basic metals such as iron, steel, aluminum, copper, and other metals.

    Read the full NAICS definition →