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NAICS Code· 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.

218
Active Contracts
$380.2M
Total Obligations (12mo)
7.4K
Awarded Contracts (12mo)
882
Contractors Awarded (12mo)
-62.2%
YoY Growth

Contract Opportunities

Active solicitations and awarded contracts classified under NAICS 333998 — All Other Miscellaneous General Purpose Machinery Manufacturing.

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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
FILTER, FLUIDThis contract is for the procurement of 19 units of a fluid filter identified by NSN 4330-01-104-7251, issued under solicitation SPE7M4-26-T-255Z as a Service-Disabled Veteran-Owned Small Business Set-Aside. The item is classified as a critical application item and a Navy field level reparable, requiring strict configuration control under MIL-STD-973. The contract enforces stringent material restrictions, prohibiting the intentional addition or direct contact of mercury or mercury-containing compounds in the supply, except for specified functional uses such as batteries, fluorescent lamps, sensors, weapon systems, and chemical reagents approved by NAVSEA; portable mercury-containing devices must include shockproof construction and a secondary containment boundary as per NAVSEA 5100-003D. Packaging and marking must comply fully with MIL-STD-2073-1E and MIL-STD-129, using the DLA-approved unit of issue, with no tolerance for quantity variance. Delivery is FOB origin with inspection and acceptance occurring at the destination, and the required delivery date is 164 days from award, with a need ship date of January 5, 2027. All packaging and palletization adhere to DLA’s standardized requirements, and shipments must be directed to the designated DLA Distribution facility in New Cumberland, Pennsylvania. The contract incorporates technical and quality standards referenced in the DLA Master List, with compliance controlled by the revision in effect on the solicitation issue date.
FLUID HANDLING DIVISION

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NAICS: 333998
New
DIBBS
FILTER ELEMENT, FLUIThis contract is for the procurement of 54 filter elements for fluid systems, identified by part number P198600 and NSN 4330-01-652-7929, supplied by DONALDSON COMPANY, INC. The item is classified as a critical application item and must comply with stringent technical and quality requirements referenced from the DLA Master List of Technical and Quality Requirements, including specific mandates for supply chain traceability, FAA airworthiness approval, and Item Unique Identification (IUID) in accordance with MIL-STD-130 and DFARS 252.211-7003. Packaging, preservation, and marking must strictly adhere to MIL-STD-2073-1E, MIL-STD-129, and DLA packaging standards, with no special marking required. The item must be delivered FOB origin within 21 days of contract award, with zero tolerance for quantity variance, and inspection and acceptance occur at the destination. The designated delivery point is the DLA Distribution Depot in Tinker AFB, Oklahoma, and transportation logistics must follow DLA Procurement Notes C19 and C20. The contract requires full retention of supply chain documentation per DLA Directive C03 from August 2016, and the unit of issue is each. The original required delivery date is June 5, 2026, with a needed ship date of January 8, 2026, under solicitation SPE7M1-26-T-207Y, with a response deadline of July 24, 2026.
MARITIME SUPPLY CHAIN

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NAICS: 333998
New
DIBBS
PARTS KIT, FLUID PREThis contract specifies the procurement of a fluid parts kit identified by NSN 4330016218745 and part number 2081815, supplied by HYDAC CORP 59793, with a total quantity of 17 units at a unit price of $17.00, resulting in a total price of $289.00. The item is a seal kit with elastomeric components made of NBR material, and delivery is required within 24 days under FOB origin terms with no tolerance for variance in quantity. Inspection and acceptance both occur at the destination point, and packaging must strictly comply with MIL-STD-2073-1E standards, including marking per MIL-STD-129 with no special marking codes. The unit of issue is each, and the supply is subject to DLA’s packaging and procurement requirements referenced in RP001, which incorporate technical and quality standards listed in the DLA Master List of Technical and Quality Requirements accessible via the official DLA website. The contract is issued under solicitation number SPE7M1-26-T-208L with a response deadline of July 24, 2026, and an original required delivery date of July 13, 2026, though the needed ship date is August 18, 2026. The delivery destination is DLA Distribution San Diego at 3581 Cummings Road, Building 3581, San Diego, CA 92136-3581, and transportation procedures follow DLAD Proc Notes C19 and C20. The solicitation falls under NAICS code 333998 and is managed by the Department of Defense’s Maritime Supply Chain organization. The primary point of contact is Tara Halter, reachable via email and phone. The contract also requires adherence to the DLA Authorized Unit of Issue standards, and all documentation must reference the current DLA Master List revisions effective on the solicitation issue date.
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NAICS: 333998
New
Federal
TAPE,SPECIALThe contract pertains to the procurement of SPECIAL TAPE under solicitation N0010426QEA59, issued by the Naval Supply Systems Command Weapon Systems Support (NAVSUP WSS) Mechanicburg office, and is subject to stringent technical, quality, and compliance requirements. All supplies must conform to the Individual Repair Part Ordering Data (IRPOD), which governs specification revisions, documentation, and manufacturing standards, with strict order of precedence established between contract terms, drawings, specifications, and technical data. The contractor is required to maintain an approved inspection system and retain complete records for government review, with mandatory pre-manufacturing submittals due 45 days after contract award and final test reports submitted per delivery schedule, each accompanied by certified documentation. Packaging must adhere to MIL-PRF-23199 and MIL-STD-2073, with specific controls on cleanliness and prohibition of mercury or mercury-containing compounds; green poly bags may be used only if all referenced cleanliness conditions are met, and fire-retardant materials are no longer required. All technical documents accessed via the BPMI e-commerce portal are binding and subject to NOFORN restrictions, requiring prior authorization for any foreign dissemination. The contract imposes mandatory compliance with cybersecurity maturity model certification, small business representations, veteran and disability equal opportunity provisions, and a total small business set-aside, with all contractual documents deemed issued upon electronic transmission. Pricing is valid for 60 days post-closing unless otherwise specified, and waiver requests for deviations must include full technical justification, evaluation of impact on form, fit, or function, and supporting data such as drawings or catalog pages, submitted through the Government Quality Assurance Representative. Delivery must follow FOB destination terms, with payment instructions aligned to Wide Area Workflow and DD Form 1423 data requirements. The contractor must submit technical data packages according to precise schedules using approved codes and formats, with specific deadlines tied to contract award or end-of-contract dates, and must ensure all packaging labels match nomenclature specified in the IRPOD. Failure to meet any requirement may result in rejection of proposals or non-acceptance of deliveries, and any non-conforming material without prior waiver authorization is in breach of contract.
Navsup Weapon Systems Support Mech

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NAICS: 333998
New
Federal
99--BULKHEAD ASSY,ACFT.This solicitation, issued by the Naval Supply Systems Command Weapon Systems Support under solicitation number N0038326QQA30, seeks a bulkhead assembly for aircraft and is categorized under NAICS code 333998. The response deadline is set for July 24, 2026, after multiple prior extensions from earlier dates including March, April, May, and June 2026, with the final amendment adjusting the quantity to one unit. The contract is issued by the Government upon electronic transmission, facsimile, or mailing, and acceptance by the contractor constitutes a binding agreement. The requirement has been reviewed by the Small Business Administration and determined not to warrant a set-aside. The primary point of contact is Helen I. Carmelo, reachable via email at Helen.i.carmelo.civ@us.navy.mil, with a phone number listed as 2156971138, located in Philadelphia, Pennsylvania. The contract includes standard clauses regarding warranty, with one year coverage post-delivery and a 45-day defect discovery window, and incorporates provisions on Buy American, equal opportunity, limitations on pass-through charges, and royalty information. Payment will be processed through a combined invoice and receiving report system, with instructions found in the schedule. The contract also requires compliance with annual representations and certifications, and the contractor must adhere to all applicable federal regulations governing defense procurement, including those related to national defense priorities and noncomplex supply warranties.
Navsup Weapon Systems Support

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NAICS: 333998
New
Federal
DOOR, BALLISTICThis contract solicitation, identified as N0010426QSB68, is for the procurement of a BALLISTIC DOOR under a fixed-price arrangement with inspection and acceptance governed by established military standards. The item must be manufactured to meet specific design criteria identified by Cage Code 53711 and reference number 124-4322612 ASSY 85 CVN68,69, and must be marked in compliance with MIL-STD-130 Revision N. All materials must originate from authorized distributors of the original equipment manufacturer, with documented proof of authorization required prior to award. The contract mandates strict traceability and prohibits unauthorized substitutions; any design, material, or part number changes require prior written approval from the NAVICP-MECH Contracting Officer, classified under one of six defined change codes. Government source inspection is required, with detailed CAGE codes and DoDAAC identifiers to be provided by the offeror for inspection, final acceptance, and packaging processes. The contract imposes full compliance with Buy American provisions, security exclusions, and national defense priority ratings, and all supplies must be shipped FOB Origin. Packaging must adhere to MIL-STD-2073 as specified in the schedule, and contractors must maintain complete inspection records for 365 days after final delivery. Quotations must remain firm and valid for a minimum of 45 days, with responses due by August 7, 2026. The offeror must confirm their status as an authorized distributor via official letterhead signed by a company representative. All technical documents referenced are to be obtained through designated DoD sources, with special restrictions applying to No For Official Release (NOFORN) and export-controlled materials. This solicitation is open only to entities meeting U.S. government sourcing mandates, with the award subject to bilateral acceptance and rigorous quality assurance oversight by the U.S. Navy’s Naval Supply Systems Command Weapons Support in Mechanicsburg, PA.
Navsup Weapon Systems Support Mech

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NAICS: 333998
New
Federal
BRACKETThe contract solicitation under number N0038326QMA70, issued by the Naval Supply Systems Command Weapon Systems Support, seeks responsive offers for supplies related to noncomplex items governed by a suite of mandatory federal and naval regulations. The solicitation is open for response until August 10, 2026, with inquiries directed to Jaclyn Dooling at the Philadelphia, Pennsylvania office. Key provisions include a 12-month warranty for noncomplex supplies with a 45-day defect discovery window, mandatory use of the Workflow Pro Assist Module for payment processing, and strict compliance with Buy American provisions, limitations on pass-through charges, and security prohibitions as defined by recent federal deviations. The contractor must also adhere to Equal Opportunity requirements for workers with disabilities and provide royalty information as applicable. All offers must comply with the mandatory Navy use of AbilityOne support contractors, the release of offeror information under specified protocols, and the application of priority ratings for national defense, emergency preparedness, and energy programs. The contract mandates the use of specific certification forms for Buy American and Free Trade Agreements, as well as annual representations and certifications under deviation guidelines effective February 2026. Technical compliance with item unique identification and valuation standards from January 2023 is required, and all invoicing must follow Wide Area Workflow payment instructions. The NAICS code 333998 indicates the contract pertains to other miscellaneous manufacturing, with no set-aside classification specified, and performance location is not restricted to a specific geographic area beyond the overarching scope of the Department of Defense.
Navsup Weapon Systems Support

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NAICS: 333998
New
Federal
99--FAIRING, AIRCRAFTThe contract pertains to the procurement of a 99--FAIRING, AIRCRAFT under solicitation number N0038326QQB32, issued by the Naval Supply Systems Command Weapon Systems Support within the Department of Defense. The offering office is located in Philadelphia, Pennsylvania, with Jessica T. Grzywna as the primary point of contact, reachable via email and telephone. Interested parties must submit responses by August 10, 2026, at 8:30 PM EDT, and the contract is governed under NAICS code 333998. Delivery and shipping follow FMS instructions, and all payments must be processed through the Wide Area Workflow system using combined invoice and receiving reports tied to the N00383 identifier. The supplies are subject to a one-year warranty period beginning at the date of delivery, with defects claimable within 45 days of discovery. The contract enforces strict compliance with federal mandates including the Buy American Act, Free Trade Agreements, and Balance of Payments Program requirements, necessitating certification of domestic content. Pass-through charges are limited, and the contractor must adhere to security prohibitions and exclusions as defined by recent deviations. The use of Workflow Pro’s Assist Module is mandatory, and the contractor must release Offeror information as required under Navy protocols for AbilityOne support contractors. Priority ratings under national defense and emergency preparedness directives apply, and all workers must be afforded equal opportunity regardless of disability. Annual representations and certifications are required, and royalty obligations must be disclosed. All provisions are effective under current federal deviations issued in 2026, ensuring alignment with updated regulatory frameworks.
Navsup Weapon Systems Support

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NAICS: 333998
New
Federal
44--MODERATOR,CICThe contract pertains to the procurement of a MODERATOR, CIC under solicitation N0010426QBY21, issued by the Naval Supply Systems Command Weapon Systems Support Mechanic (NAVSUP WSS-MECH) with a response deadline of August 10, 2026. All contractual documents are deemed issued upon electronic transmission, including email, and the government’s acceptance of the proposal constitutes bilateral agreement. Pricing is valid for 60 days after the closing date unless otherwise specified. The contract mandates strict compliance with the Individual Repair Part Ordering Data (IRPOD), which serves as the primary technical reference and takes precedence over other documents in the event of conflict, followed by the schedule, terms and conditions, and then referenced standards and drawings. Contractors must use full revisions of cited documents as specified and may not mix portions from different revisions without written approval. The IRPOD defines critical technical, quality, and packaging requirements, including compliance with MIL-PRF-23199 for cleaning controls and the use of heat-sealed envelopes where applicable, while fire-retardant packaging is no longer required. Mercury and mercury-containing compounds are strictly prohibited. All inspection records must be maintained and available to the government throughout performance and beyond. Quality assurance is governed entirely by the IRPOD, and any waiver or deviation from technical or delivery requirements must be submitted in advance with full justification, technical data, and evaluation demonstrating no impact on form, fit, or function, reviewed by the Government Quality Assurance Representative before forwarding to the Contracting Officer. Packaging and documentation must adhere to MIL-STD-2073 and specific NAVSUP-WSS data requirements, with deliverables submitted in accordance with DD Form 1423 directives. The contract requires two pre-award submissions: a procedure package within 45 days after award as defined by DI-QCIC-8871, and a certified test and inspection report package (DI-QCIC-8872) upon completion, both submitted per unique contract line item. Distribution of technical data follows DoD controls, with specific codes dictating permitted dissemination. All documents, including drawings and specifications, must be obtained from the BPMI e-commerce portal using pre-registered credentials, and "Official Use Only" or "NOFORN" materials require formal need-to-know certification. The contract enforces equal opportunity for veterans and workers with disabilities, applies a total small business set-aside, and requires full small business
Navsup Weapon Systems Support Mech

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NAICS: 333998
New
Federal
CIRCUIT CARD ASSEMBThis contract solicitation, numbered N0010426QUC02, is for the procurement of circuit card assemblies under a fixed-price arrangement with mandatory compliance to stringent military specifications and federal regulations. The requirement is set aside for small businesses and certified for national defense use with a DX priority rating under the Defense Priorities and Allocations System, obligating the contractor to adhere strictly to 15 CFR 700. All items must meet MIL-STD-130 marking guidelines for item unique identification and be produced in accordance with DFARS 252.211-7003 for IUID compliance. The contractor must be an authorized distributor of the original equipment manufacturer, requiring official documentation confirming authorization, and must furnish complete cost breakdowns, unit pricing, delivery lead times, and a valid CAGE code with a minimum 90-day quote expiration. Delivery is FOB origin, and the Government retains full inspection rights with no waiver of responsibility for non-conforming items, even if sampling is performed. The contractor is required to maintain comprehensive records of all quality inspections for at least 365 days after final delivery and must comply with ANSI/ESD S20.20 for electrostatic discharge control. Packaging must conform to MIL-STD-2073, and any design or part number changes require prior written approval from the NAVICP-MECH Contracting Officer, categorized using specific code systems indicating interchangeability and substitutions. All documentation must be submitted electronically to AMBER.L.WALE.CIV@US.NAVY.MIL, and payment will be processed via the Wide Area Workflow system using a combo receiving report and invoice. The solicitation enforces Buy American provisions, equal opportunity requirements for veterans and workers with disabilities, and the Mandatory Use of Workflow Pro Mod Assist Module. Distribution of technical data is strictly controlled under seven distinct codes, with NOFORN and Official Use Only materials requiring formal certification. The response deadline is August 10, 2026, and failure to comply with any listed requirement may disqualify submission.
Navsup Weapon Systems Support Mech

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NAICS: 333998
Awarded
Federal
42--SIAMESE CONNECTION,The contract award notice titled "42--SIAMESE CONNECTION" with solicitation number SPE8E926T2812 was posted on July 13, 2026, and is managed by the Defense Logistics Agency Troop Support under the Department of Defense. The NAICS code 333998 indicates the contract pertains to other miscellaneous manufacturing, suggesting the scope involves specialized or non-standard equipment or components. The award is tied to an office located in Philadelphia, Pennsylvania, with the full address provided as 19111-5096. There is no specified place of performance beyond the agency location, and no set-aside designation is listed, indicating the award is open to all eligible contractors. The primary point of contact for inquiries is Timothy Reinboth, reachable via email at Timothy.Reinboth@dla.mil or by phone using the DSN number 392-737-5844. Further details regarding contract execution, deliverables, and performance timelines are contained in the official SAM.GOV workspace linked for this notice.
DLA Troop Support

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NAICS: 333998
Awarded
Federal
MOTOR,PNEUMATICThe contract pertains to the procurement of a pneumatic motor under solicitation number N0010425QQB47, posted on July 13, 2026, with a NAICS code of 333998 indicating classification under other miscellaneous manufacturing. The awarding agency is the Naval Supply Systems Command Weapon Systems Support Mechanic, part of the Department of Defense, with the office located in Mechanicsburg, Pennsylvania, 17050-0788. The point of contact for inquiries is Logan W. Mann, reachable via email at LOGAN.W.MANN.CIV@US.NAVY.MIL or by telephone at 717-605-1381. The place of performance has not been specified, and there is no set-aside designation applied to this opportunity. The contract type is listed as a justification, suggesting it may be a sole-source or non-competitive procurement based on specific requirements or constraints.
Navsup Weapon Systems Support Mech

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