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NAICS Code· 333998

NAICS 333998: All Other Miscellaneous General Purpose Machinery Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing general purpose machinery (except ventilating, heating, air-conditioning, and commercial refrigeration equipment; metalworking machinery; engines, turbines, and power transmission equipment; pumps and compressors; material handling equipment; power-driven handtools; welding and soldering equipment; packaging machinery; industrial process furnaces and ovens; fluid power cylinders and actuators; and fluid power pumps and motors). Illustrative Examples: Automatic fire sprinkler systems manufacturing Baling machinery (e.g., paper, scrap metal) manufacturing Bridge and gate lifting machinery manufacturing Centrifuges, industrial and laboratory-type, manufacturing Cremating ovens manufacturing General purpose-type sieves and screening equipment manufacturing Hydraulic and pneumatic jacks manufacturing Industrial and general purpose-type filters (except internal combustion engine, warm air furnace) manufacturing Scales and balances manufacturing Cross-References. Establishments primarily engaged in--Show more

NAICS 333998 – All Other Miscellaneous General Purpose Machinery Manufacturing covers the design and fabrication of specialized machinery that does not fit into more specific manufacturing categories, including custom automation systems, precision material handling equipment, and unique mechanical assemblies used in defense, logistics, and industrial testing environments. These products often serve niche applications in military training simulators, field-deployable maintenance platforms, and ruggedized support systems where standard industrial machinery is insufficient.

586
Active Contracts
$391.9M
Total Obligations (12mo)
7.2K
Awarded Contracts (12mo)
752
Contractors Awarded (12mo)
3
Median Bidders per Award
-54.5%
YoY Growth
Dotted
NAICS 333998 FAQ

Frequently Asked Questions

NAICS code 333998 covers All Other Miscellaneous General Purpose Machinery Manufacturing. This U.S. industry comprises establishments primarily engaged in manufacturing general purpose machinery (except ventilating, heating, air-conditioning, and commercial refrigeration equipment; metalworking machinery; engines, turbines, and power transmission equipment; pumps and compressors; material handling equipment; power-driven handtools; welding and soldering equipment; packaging machinery; industrial process furnaces and ovens; fluid power cylinders and actuators; and fluid power pumps and motors). Illustrative Examples: Automatic fire sprinkler systems manufacturing Baling machinery (e.g., paper, scrap metal) manufacturing Bridge and gate lifting machinery manufacturing Centrifuges, industrial and laboratory-type, manufacturing Cremating ovens manufacturing General purpose-type sieves and screening equipment manufacturing Hydraulic and pneumatic jacks manufacturing Industrial and general purpose-type filters (except internal combustion engine, warm air furnace) manufacturing Scales and balances manufacturing Cross-References. Establishments primarily engaged in--

Recently Posted in All Other Miscellaneous General Purpose Machinery Manufacturing

NAICS: 333998
New
DIBBS
Final Assembly and Quality Assurance for Hatch Dog AssemblyThis subcontract, issued by the Department of Defense for the DLA Weapons Support Fluid Handling Division, involves the final assembly of Piece Nos. 206, 207, and 221 into completed Dog Assemblies. The selected contractor is responsible for delivering 562 completed units, ensuring all assemblies undergo rigorous sampling and inspection in accordance with MIL-STD-1916 or ASQ H1331 to verify full compliance with DLA requirement RA001. The project is designated as a Total Small Business Set-Aside under NAICS code 333998, with performance taking place in Tracy, California. Interested parties must respond by October 26, 2026, to provide these critical components for prime contractors supporting the agency's fluid handling projects.
DLA WEAPONS SUPPORT FLUID HANDLING DIVISION

POSTED

about 8 hours ago

DEADLINE

in 11 days
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NAICS: 333998
Awarded
DIBBS
FILTER, FLUID
Solicitation # SPE7M1-27-T-0323
Solicitation SPE7M1-27-T-0323 is a federal procurement issued by the DLA Weapons Support Maritime Supply Chain for 22 units of a commercial fluid filter, identified by NSN 4330-01-356-0850 and Highland Engineering, Inc. part number 701-FF-RK. The contract specifies a delivery period of 127 days, with a need ship date of February 24, 2027, and an original required delivery date of October 31, 2027. Shipping is designated as FOB Origin, with both inspection and acceptance occurring at the destination, specifically the DLA Distribution DDSP New Cumberland Facility in Pennsylvania. The contractor must adhere to strict packaging and marking standards, including ASTM D3951 and MIL-STD-129, with DLA Master List technical and quality requirements taking precedence. Palletization must follow RP001 guidelines. Administrative requirements include the use of Wide Area Workflow for electronic invoicing and payment. The procurement is subject to various FAR and DFARS clauses, including the Buy American and Balance of Payments Program, safeguarding of covered defense information, and prohibitions on certain telecommunications equipment. This buy is identified as a candidate for automated award, provided no first article test requirements are present and additive manufacturing is not used.
Defense Logistics Agency

POSTED

about 8 hours ago

DEADLINE

N/A
View Details
NAICS: 333998
New
DIBBS
COLLAR, REAR
Solicitation # SPE8E9-27-T-0219
Solicitation SPE8E9-27-T-0219 is a request for quotations issued by the Department of Defense, specifically DLA Troop Support Construction and Equipment MRO SVC I, for the procurement of 25 units of Rear Collars identified by NSN 4210011717193. The items are critical application components that may require specific casting or forging tooling for manufacture. The required delivery date is October 15, 2026, with a delivery window of 76 days after receipt of order. Shipping is designated as FOB Origin under the First Destination Transportation program, with the final delivery point being DLA Distribution San Joaquin in Tracy, California. The contract mandates strict adherence to quality and packaging standards, including MIL-STD-2073-1E for packaging, MIL-STD-129 for marking, and DLA packaging requirements under RP001. Technical and quality specifications are governed by the DLA Master List via RA001. Key regulatory requirements include compliance with the Buy American Act, the Berry Amendment, and DFARS 252.204-7012 for safeguarding covered defense information. Additionally, the contract prohibits the intentional addition of mercury or mercury-containing compounds to the hardware. Inspection and acceptance will occur at the destination, and all invoicing must be processed electronically through the Wide Area Workflow system.
CONSTRUCTION & EQUIPMENT MRO SVC I

POSTED

about 8 hours ago

DEADLINE

in 11 days
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NAICS: 333998
New
DIBBS
FILTER ELEMENT, FLUID
Solicitation # SPE7M1-27-T-1002
Solicitation SPE7M1-27-T-1002 is a federal procurement issued by the DLA Weapons Support Maritime Supply Chain for 346 fluid filter elements under NSN 4330000083584. The contract specifies several approved sources, including Pall Aeropower Corp, Honeywell International Inc, JSN Inc, Service & Sales Inc, and Donaldson Company Inc. Delivery is required within 168 days of order, with a need ship date of April 13, 2027, and an original required delivery date of August 24, 2027. The items are to be delivered FOB Origin to the DLA Distribution Depot Oklahoma at Tinker AFB. The contract mandates strict adherence to technical and quality requirements, specifically prohibiting the use of Class I ozone depleting chemicals. Packaging must comply with ASTM D3951 and RP001 DLA Packaging Requirements, while marking and labeling must follow MIL-STD-129. Inspection and acceptance will occur at the destination. Administrative requirements include electronic invoicing via Wide Area WorkFlow and compliance with various FAR and DFARS clauses, including those regarding the Buy American Act, Berry Amendment, and cybersecurity safeguarding of covered defense information.
DLA WEAPONS SUPPORT MARITIME SUPPLY CHAIN

POSTED

about 8 hours ago

DEADLINE

in 11 days
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NAICS: 333998
New
DIBBS
HOUR METER, AIRCRAFT
Solicitation # SPE7M1-27-T-1007
Solicitation SPE7M1-27-T-1007 is issued by the Defense Logistics Agency (DLA) Weapons Support Maritime Supply Chain for the procurement of one aircraft hour meter, identified by NSN 4330-01-488-6470 and Kampi Components Co Inc part number 6 X 139. This critical application item is being acquired under the First Destination Transportation (FDT) program, with a need ship date of April 13, 2027, and an original required delivery date of April 29, 2027. The item is to be delivered FOB Origin to the DLA Distribution DDSP New Cumberland Facility in Pennsylvania, where both inspection and acceptance will take place. The contract mandates strict adherence to packaging and labeling standards, requiring compliance with ASTM D3951 and MIL-STD-129, while noting that the DLA Master List of Technical and Quality Requirements and RP001 packaging requirements take precedence. Administrative requirements include the use of the Wide Area WorkFlow (WAWF) system for electronic invoicing and payment processing. Offerors must comply with the Buy American Act, the Berry Amendment, and DFARS 252.204-7012 regarding cybersecurity and safeguarding covered defense information. Quotes are to be submitted via the DIBBS portal under NAICS code 333998.
DLA WEAPONS SUPPORT MARITIME SUPPLY CHAIN

POSTED

about 8 hours ago

DEADLINE

in 11 days
View Details
NAICS: 333998
Awarded
DIBBS
SHOP EQUIPMENT, MOTOR VEHICLE ASSEMBLING
Solicitation # SPE7L3-26-T-263L
Solicitation SPE7L3-26-T-263L is a Request for Quotations issued by the Department of Defense, specifically the Land Supplier Operations Vehicle Support agency, for the procurement of 16 units of motor vehicle assembling shop equipment. The required items are identified by NSN 4910-15-033-5343 and part number 506010149 from Iveco Defence Vehicles S.p.A. The required delivery date and need ship date are both set for April 1, 2027, with a delivery lead time of 184 days after receipt of order. Shipping is established as FOB Origin, with the destination for both inspection and acceptance located at the DLA Distribution DDSP New Cumberland facility in Pennsylvania. The contract mandates strict adherence to the DLA Master List of Technical and Quality Requirements, including packaging standards ASTM D3951 and marking requirements per MIL-STD-129. Environmental compliance is required, specifically the prohibition of Class I ozone-depleting chemicals. Administrative requirements include the use of the Wide Area WorkFlow system for electronic invoicing and compliance with various FAR and DFARS clauses, including the Buy American Act, Berry Amendment, and NIST SP 800-171 cybersecurity standards. Quotes must be submitted via the DIBBS portal, and the use of additive manufacturing for the supplied parts is prohibited unless specifically authorized.
Defense Logistics Agency

POSTED

about 8 hours ago

DEADLINE

N/A
View Details
NAICS: 333998
New
DIBBS
POPPET, FILLER
Solicitation # SPE4A7-27-T-1342
DLA WEAPONS SUPPORT ASC SUPPLIER OPER AE AND AF DIV

POSTED

about 8 hours ago

DEADLINE

in 8 days
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NAICS: 333998
Awarded
DIBBS
STRAINER, SEDIMENT
Solicitation # SPE7M3-27-T-0178
Solicitation SPE7M3-27-T-0178 is a fixed-price procurement issued by the DLA Weapons Support Fluid Handling Division for four sediment strainers, identified by NSN 4730-01-540-3594 and part number 75116-100 from HDT Expeditionary Systems Inc. The contract specifies a delivery period of 282 days, with a need ship date of July 29, 2027, and an original required delivery date of October 31, 2027. Shipping is designated as FOB Origin, with the final destination for both inspection and acceptance being the DLA Distribution DDSP New Cumberland Facility in Pennsylvania. The contractor must adhere to strict packaging and marking standards, including ASTM D3951 and MIL-STD-129, with DLA Master List technical and quality requirements taking precedence. Palletization must comply with RP001. Key regulatory requirements include compliance with the Buy American Act, the Berry Amendment, and DFARS 252.204-7012 for safeguarding covered defense information. Additionally, the government will not evaluate offers utilizing additive manufacturing unless specifically authorized. Invoicing and payment must be processed electronically through the Wide Area WorkFlow system.
Defense Logistics Agency

POSTED

about 8 hours ago

DEADLINE

N/A
View Details
NAICS: 333998
New
DIBBS
SEPARATOR, OIL
Solicitation # SPE7M1-27-T-1010
DLA WEAPONS SUPPORT MARITIME SUPPLY CHAIN

POSTED

about 8 hours ago

DEADLINE

in 11 days
View Details
NAICS: 333998
Closed
SLED
NEW PRIME MOVERS WITH TRAINING AND SPARE PARTS
Solicitation # WMATA-0000010822
The Washington Metropolitan Area Transit Authority is soliciting bids for the procurement of new prime movers, which includes the provision of necessary training and spare parts. This solicitation, identified by number WMATA-0000010822 and categorized under NAICS code 333998, is managed by the agency's Virginia-based organization. The opportunity was posted on September 29, 2026, with a rapid response deadline set for September 30, 2026. Interested parties must submit their responses through the official supplier portal by the specified deadline to be considered for the contract.
Washington Metropolitan Area Transit Authority

POSTED

about 9 hours ago

CLOSED

15 days ago
View Details
NAICS: 333998
New
International
Hydraulic Lift System for Message BoardThis subcontract agreement involves the fabrication, supply, and installation of a hydraulic lifting mechanism designed for message boards on trailers for City of Saskatoon infrastructure projects. The scope of work requires the contractor to provide a complete system consisting of pumps, cylinders, and mounting hardware, along with the necessary schematic drawings for both the hydraulic and electrical systems. The project deliverables include one fully installed lift system and the accompanying technical schematics. Interested parties must note that the response deadline for this opportunity is October 30, 2026, with the project falling under NAICS code 333998.
City of Saskatoon

POSTED

about 10 hours ago

DEADLINE

in 15 days
View Details
NAICS: 333998
New
Federal
SEAL RING,NUCLEAR C
Solicitation # N0010427QBA56
Solicitation NO0010427QBA56 is a fixed-price request for quotations issued by NAVSUP Weapon Systems Support Mechanicsburg for the procurement of Seal Ring, Nuclear C (NIIN 000085310). The government will award the contract to the responsible offeror providing the lowest priced, technically acceptable offer. Technical acceptability is based on full compliance with the solicitation terms and instructions, with price evaluations including the estimated cost of required first article testing. The contracting officer will also utilize the Supplier Performance Risk System to assess item, price, and supplier risks. The contractor is required to conduct first article testing and inspection on one unit and submit a report via the Wide Area Workflow platform. Quality assurance must adhere to MIL-I-45208 as supplemented by ISR-1, with specific requirements detailed in the Individual Repair Part Ordering Data. Packaging must comply with MIL-STD-2073 and MIL-PRF-23199, specifically requiring MIL-DTL-24466 green poly bags if cleanliness controls such as Reactor Plant Clean are invoked. All deliverables, including reports of test and inspection and lower-tier supplier identification packages, must be submitted electronically through WAWF. Additional requirements include strict adherence to cybersecurity maturity model certification levels and the safeguarding of covered defense information. The contract prohibits the intentional addition of mercury to hardware and mandates that all wood packaging materials be ISPM 15 compliant. Offerors must provide Safety Data Sheets for any hazardous materials and are subject to Buy American and Balance of Payments Program regulations, with a 10 percent price evaluation preference applied to non-HUBZone small business concerns.
Navsup Weapon Systems Support Mech

POSTED

about 13 hours ago

DEADLINE

in about 1 month
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