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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /2131

    NAICS Demand Lane

    Support Activities for Mining, Contract Opportunities

    509 total opportunities (509 active) tied to NAICS 2131 across federal, state, local, and forecast sources.
    NAICS 2131Federal + SLED509 total
    View NAICS definition →
    Total Opportunities
    509
    Across all indexed sources
    Active Estimate
    509
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 2131.

    DEPARTMENT OF VETERANS AFFAIRS

    H999--UNDERGROUND FUEL STORAGE TANK CLEANING, INSPECTION, TESTING AND RE-FUELING

    Active

    AI Summary

    The Department of Veterans Affairs is soliciting services to clean, inspect, and test underground fuel storage tanks and replenish fuel. The solicitation references a statement of work and attachments for technical requirements. Responses are due November 6, 2026.

    CA

    Posted Oct 23, 2026Due Nov 6, 2026SolicitationNAICS 213112Sol: 36C26127Q0089
    View details→

    DEPT OF DEFENSE

    56--CLAMP,EDGE,MATING

    Active

    AI Summary

    DLA is soliciting quotes for NSN 5680-01-445-6865, a mating edge clamp, with 690 units on Line 0001 and one unit on Line 0002. Delivery is to DLA Distribution within 180 and 30 days after order, respectively. The procurement is set aside for small businesses; responsible sources may submit quotes electronically.

    PA

    Posted Oct 20, 2026Due Oct 27, 2026Combined Synopsis/SolicitationNAICS 213113Total Small Business Set-Aside (FAR 19.5)Sol: SPE8E626Q0702
    View details→

    DEPT OF DEFENSE

    30--SHAFT,SHOULDERED

    Active

    AI Summary

    DLA is soliciting electronic quotes for 13 shouldered shafts, NSN 3040-01-228-4200, for delivery to DLA depots in the United States and overseas within 96 days after order. The one-year procurement may establish an automated indefinite delivery contract, with a $350,000 aggregate order limit, an estimated two orders an…

    OH

    Posted Oct 20, 2026Due Nov 3, 2026Combined Synopsis/SolicitationNAICS 213113Total Small Business Set-Aside (FAR 19.5)Sol: SPE7L127U0105
    View details→

    DEPT OF DEFENSE

    PROVIDE FJI DIESEL FUEL AT CFAS JAPAN

    Active

    AI Summary

    The Department of Defense is soliciting bids for the provision of FJI Diesel fuel at CFAS Japan. The fuel must meet specific standards, including JIS K2204-1997-1-GO and a maximum pour point of -2.5°C. Interested contractors should prepare to meet these requirements.

    AP

    Posted Oct 9, 2026Due Nov 13, 2026SolicitationNAICS 213112Sol: N4008427Q6001
    View details→

    DEPT OF DEFENSE

    53--KEY,MACHINE

    Archived

    AI Summary

    The Department of Defense is seeking quotes for 6 machine keys under NSN 5315016218307. 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 participate.

    VA

    Posted Oct 8, 2026Due Oct 15, 2026Combined Synopsis/SolicitationNAICS 213113Sol: SPE4A627T1025
    View details→

    DEPT OF DEFENSE

    25--BRACKET,VEHICULAR COMP

    Archived

    AI Summary

    The Department of Defense is soliciting quotes for 28 units of vehicular components, specifically NSN 2590015281762. This opportunity may lead to an Indefinite Delivery Contract with a one-year term. Quotes must be submitted electronically, and hard copies are not available. All responsible sources are encouraged to pa…

    OH

    Posted Oct 6, 2026Due Oct 21, 2026Combined Synopsis/SolicitationNAICS 213113Sol: SPE7LX27U0113
    View details→

    DEPT OF DEFENSE

    30--SHAFT,SHOULDERED

    Archived

    AI Summary

    The Department of Defense is seeking quotes for 40 units of NSN 3040014121127, a shouldered shaft. This opportunity is a combined synopsis/solicitation and is available electronically. All responsible sources may submit a quote for consideration.

    OH

    Posted Sep 24, 2026Due Oct 5, 2026Combined Synopsis/SolicitationNAICS 213113Sol: SPE7L426T7180
    View details→

    DEPARTMENT OF THE INTERIOR

    GLBA UST CORRECTIVE ACTION

    Archived

    AI Summary

    The Department of the Interior, National Park Service is soliciting proposals for GLBA UST corrective action services. This opportunity is categorized under NAICS code 213112 and is not set aside for simplified acquisition procedures. Interested bidders should prepare to submit their proposals by the deadline of Septem…

    AK

    Posted Sep 13, 2026Due Sep 21, 2026SolicitationNAICS 213112Small Business Set Aside - TotalSol: 140P9726Q0071
    View details→

    DEPARTMENT OF THE INTERIOR

    F--SYNOPSIS: OIL WELL PLUGGING AT BISO

    Archived

    AI Summary

    The National Park Service is preparing to issue an Invitation for Bid for oil well plugging at Big South Fork National River and Recreation Area. The project involves plugging and reclaiming 16 wells and re-plugging one well, with a contract value between $5 million and $10 million. A site visit will be announced, and …

    DC

    Posted Sep 2, 2026PresolicitationNAICS 213112Sol: DOIPFBO260026
    View details→

    DEPARTMENT OF THE INTERIOR

    F--SOURCES SOUGHT: OIL WELL PLUGGING AT BISO

    Archived

    AI Summary

    The National Park Service is conducting a Sources Sought for interested parties to provide oil well plugging services for 17 wells at BISO. This is not a solicitation but a request for information. Interested vendors should respond by September 9, 2026, to the provided email.

    DC

    Posted Sep 2, 2026Due Sep 9, 2026Sources SoughtNAICS 213112Sol: DOIPFBO260024
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    203
    sled
    304
    forecast
    2

    Related NAICS Codes

    • 21, Mining, Quarrying, and Oil and Gas Extraction→
    • 211, Oil and Gas Extraction→
    • 2111, Oil and Gas Extraction→
    • 21111, Oil and Gas Extraction→
    • 211111, Crude Petroleum and Natural Gas Extraction→
    • 211112, Natural Gas Liquid Extraction→
    • 21112, Crude Petroleum Extraction→
    • 211120, Crude Petroleum Extraction→
    • 21113, Natural Gas Extraction→
    • 211130, Natural Gas Extraction→

    Explore

    • 2131 Definition→
    • Browse NAICS Codes→
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    About NAICS 2131

    This industry comprises establishments primarily engaged in performing support activities on a contract or fee basis for mining and quarrying operations. These activities include exploration, drilling, and other services that assist in the extraction of minerals.

    Read the full NAICS definition →