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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /3251

    NAICS Demand Lane

    Basic Chemical Manufacturing, Contract Opportunities

    3,477 total opportunities (3,477 active) tied to NAICS 3251 across federal, state, local, and forecast sources.
    NAICS 3251Federal + SLED3.5K total
    View NAICS definition →
    Total Opportunities
    3.5K
    Across all indexed sources
    Active Estimate
    3.5K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 3251.

    DEPT OF DEFENSE

    RE CERTIFICATION NITROGEN CYLINDERS

    Active

    AI Summary

    Sierra Army Depot in Herlong, California, seeks recertification services for nitrogen cylinders through an unrestricted, firm-fixed-price contract. The Army anticipates one award using simplified acquisition procedures, with award based on the lowest-priced offer that meets specifications. Interested firms must submit …

    CA

    Posted Oct 22, 2026Due Oct 28, 2026SolicitationNAICS 325120No Set aside usedSol: W912GY27QA001
    View details→

    DEPT OF DEFENSE

    NOTICE OF INTENT TO SOLE SOURCE: COMMERCIAL INDUSTRIAL AND LIQUID GASES AND CYLINDER MAINTENANCE

    Active

    AI Summary

    The Army has issued a notice of intent to sole source commercial industrial and liquid gases, along with cylinder maintenance. The notice is a presolicitation and directs interested parties to the attached document for details. The available information does not identify the anticipated contract value or acquisition pr…

    PA

    Posted Oct 22, 2026Due Nov 6, 2026PresolicitationNAICS 325120Sol: W51AA1-27-N-0001
    View details→

    DEPARTMENT OF VETERANS AFFAIRS

    6835--BULK OXYGEN - BRIDGE

    Active

    AI Summary

    The VA Loma Linda Healthcare System intends to make a sole-source bridge award to the incumbent, RCG of North Carolina, LLC, for bulk medical oxygen, delivery, and rental of primary and backup storage tanks. The action maintains uninterrupted, mission-critical hospital supply while the VA prepares a competitive long-te…

    CA

    Posted Oct 22, 2026Due Oct 31, 2026Special NoticeNAICS 325120Sol: 36C26227Q0066
    View details→

    DEPARTMENT OF VETERANS AFFAIRS

    6835-- BULK OXYGEN (BASE+4 OPTION)

    Active

    AI Summary

    The Department of Veterans Affairs is soliciting bulk oxygen under a base period with four option periods. Amendment 0002 removes references to prospective or future construction activities from the statement of work. The revised RFQ is due October 27, 2026; vendors should reference RFQ 36C26227Q0019 in their submissio…

    CA

    Posted Oct 21, 2026Due Oct 27, 2026Combined Synopsis/SolicitationNAICS 325120Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: 36C26227Q0019
    View details→

    DEPT OF DEFENSE

    LIQUID OXYGEN - RAAF BASE DARWIN, NORTHERN TERRITORY, AUSTRALIA

    Archived

    AI Summary

    DLA Energy is seeking capability statements from suppliers able to provide Type II, Grade A liquid oxygen to RAAF Base Darwin, Australia, with associated tank fills, delivery, and related services. The anticipated five-year, firm-fixed-price requirements contract covers an estimated 10,000 gallons. This is market resea…

    TX

    Posted Oct 21, 2026Due Nov 5, 2024Sources SoughtNAICS 325120Sol: SPE60127RDARWIN
    View details→

    NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

    REQUEST FOR PROPOSAL (RFP) FOR NASA AGENCY-WIDE SUPPLY OF LIQUID AND GASEOUS HELIUM

    Active

    AI Summary

    NASA is accepting opt-in proposals from new entrants and existing helium contractors to supply liquid and gaseous helium at specified NASA centers and facilities nationwide. Proposals are evaluated for technical acceptability by location; successful offerors will join the location-specific contract pool and may compete…

    FL

    Posted Oct 20, 2026Due Nov 19, 2026SolicitationNAICS 325120Sol: 80KSC024R0010
    View details→

    DEPT OF DEFENSE

    68--CALIBRATING GAS MIXTUR

    Active

    AI Summary

    The Defense Logistics Agency is soliciting electronic quotes for 214 units of calibrating gas mixture, NSN 6830-01-698-7232, for delivery to DLA Distribution San Joaquin within 99 days after order. Approved sources are listed in the notice. Specifications, drawings, and hard-copy solicitation documents are unavailable;…

    VA

    Posted Oct 19, 2026Due Oct 27, 2026Combined Synopsis/SolicitationNAICS 325120Historically Underutilized Business (HUBZone) Set-Aside (FAR 19.13)Sol: SPE4A627T5367
    View details→

    DEPT OF DEFENSE

    PROPANE GAS DELIVERY TO OSAN AIR BASE

    Archived

    AI Summary

    The contractor will supply and deliver full 50-kilogram propane tanks to designated facilities at Osan Air Base. The contractor must provide vehicles, equipment, labor, supervision, and all required Republic of Korea licenses and permits, and comply with Korean safety regulations. The Government may conduct spot checks…

    AP

    Posted Oct 19, 2026Due Oct 25, 2026Combined Synopsis/SolicitationNAICS 325120Sol: W90VN627Q1CQ7
    View details→

    DEPT OF DEFENSE

    NAVAL UNDERSEA WARFARE CENTER DIVISION KEYPORT, WASHINGTON

    Active

    AI Summary

    The Defense Logistics Agency Energy requires quotes for the delivery of Liquid Nitrogen to Keyport, WA, over a 47-month period. The contract includes associated services and is set to begin on August 11, 2027. Interested parties must submit their quotes by November 16, 2026, including technical capability statements an…

    TX

    Posted Oct 16, 2026Due Nov 16, 2026SolicitationNAICS 325120Sol: SPE60127Q0300
    View details→

    DEPT OF DEFENSE

    HYDROGEN,REACTOR GR

    Active

    AI Summary

    The Department of Defense is soliciting proposals for hydrogen production under NAICS code 325120. This opportunity is a fixed-price contract requiring production lot testing and compliance with various technical specifications. Bidders must ensure timely delivery and adherence to safety standards. Interested parties s…

    PA

    Posted Oct 16, 2026Due Nov 16, 2026SolicitationNAICS 325120Sol: N0010427QBB30
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    2,666
    sled
    799
    forecast
    12

    Related NAICS Codes

    • 32, Manufacturing→
    • 321, Wood Product Manufacturing→
    • 3211, Sawmills and Wood Preservation→
    • 32111, Sawmills and Wood Preservation→
    • 321113, Sawmills→
    • 321114, Wood Preservation→
    • 3212, Veneer, Plywood, and Engineered Wood Product Manufacturing→
    • 32121, Veneer, Plywood, and Engineered Wood Product Manufacturing→
    • 321211, Hardwood Veneer and Plywood Manufacturing→
    • 321212, Softwood Veneer and Plywood Manufacturing→

    Explore

    • 3251 Definition→
    • Browse NAICS Codes→
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    • Browse by Agency→
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    About NAICS 3251

    Basic Chemical Manufacturing involves the production of chemicals through the transformation of raw materials such as petroleum and natural gas. This industry produces fundamental chemicals used as inputs for various other manufacturing processes.

    Read the full NAICS definition →