Federal NAICS Codes

NAICS 333998

All Other Miscellaneous General Purpose Machinery Manufacturing

Explore obligations, trends, recent awards, and incumbent contractors for NAICS 333998.

NAICS 333998 federal market metrics

Total obligations
$782.8M
Total awards
24,961 awards
Active obligations
$208.3M
Size standard
700 employees

What this NAICS covers

NAICS 333998 covers fabrication, assembly, and factory testing of general purpose machinery not classified elsewhere, including component machining, electrical and hydraulic integration, final assembly, factory acceptance testing, inspection, and maintenance of production quality records.

Federal opportunities under 333998 typically involve manufacturing and delivering assembled, factory-tested general purpose machinery to agency specifications, supplying test reports, as-built documentation, spare parts, quality records, and meeting specified performance, safety, and acceptance test criteria.

FY2025 snapshot

Obligations
$282.6M
Awards
7,522
Average award
$37.6K
Change from FY2024
+22.9%

Recent awards

Search contractors

$35,756

AANTILIA LLC

US Coast Guard

PIID
70Z08026P20475B00
PSC
6680 - LIQUID AND GAS FLOW, LIQUID LEVEL, AND MECHANICAL MOTION MEASURING INSTRUMENTS

$15,000

S I T CORPORATION

US Coast Guard

PIID
70Z08026P20477B00
PSC
5930 - SWITCHES

$38,195

UNIVERSAL MACHINE, INC

Federal Aviation Administration

PIID
6973GH26P01973
PSC
5975 - ELECTRICAL HARDWARE AND SUPPLIES

$15,624

ACROSS INTERNATIONAL LLC

National Aeronautics and Space Administration

PIID
80NSSC26P0736
PSC
6605 - NAVIGATIONAL INSTRUMENTS

FAQ

What work fits NAICS 333998?
  • Manufacture custom mechanical equipment assemblies not covered by a specific machinery code, delivered with as-built drawings, serial numbers, and factory acceptance records.
  • Produce retrofit machinery kits from controlled bills of material, including machined brackets, guarded mechanical assemblies, couplings, labels, and packaged installation hardware.
  • Assemble benchtop or skid-mounted process equipment used for material handling, sample preparation, or equipment testing, with documented run tests before shipment.
  • Small-lot production of replacement machinery subassemblies where the contract requires factory fabrication, assembly, labeling, packaging, and acceptance testing.
When is NAICS 333998 a weak fit?
  • Fluid power pump and motor manufacturing: the primary products are hydraulic or pneumatic pumps, motors, reservoirs, valves, and power units covered by a more specific machinery code.
  • Conveyor, crane, or hoist manufacturing: the machinery is a dedicated material-handling system with its own specialized manufacturing classification.
  • Engineering design or machinery repair services: missing factory production of new machinery or subassemblies delivered as manufactured goods.
What solicitation language points to NAICS 333998?
  • Procurement language requesting production of machine assemblies, retrofit kits, or serial-numbered mechanical units with bills of material and shop drawings.
  • Factory acceptance testing, delivery of finished assemblies with traceable serial numbers, spares lists, and spare-parts packaging requirements.
  • Quality and production deliverables such as material certifications, dimensional inspection reports, run quantities, and specified production lead times.

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