Analysis
NAICS 333998 is the 2022 national industry for all other miscellaneous general purpose machinery manufacturing, part of 33399 (All Other General Purpose Machinery Manufacturing). Census lists 35 example activities under it in the official index.
Census lists 12 related activities that belong elsewhere, most often in 33341, 336390, 33392 and 333991. Businesses that do several things are classified by their primary activity, the one that generates the most value, so check those boundaries before settling on this code.
Its index entries, the activities Census uses to assign businesses to this code, include aircraft carrier catapults manufacturing, baby scales manufacturing, balances, including laboratory-type, manufacturing and baling machinery (e.g., paper, scrap metal) manufacturing, among 35 in all.
For example, manufacturing ventilating, heating, air-conditioning (except motor vehicle), and commercial refrigeration equipment are classified in 33341 (Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing) instead.
County Business Patterns publishes no national count for it, either because the code is out of the survey's scope or because the figures are suppressed to protect individual businesses.
Official definition
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
Source: US Census Bureau, NAICS 2022 Manual.
Not this code if…
| The business mainly does | Use instead |
|---|---|
| Manufacturing ventilating, heating, air-conditioning (except motor vehicle), and commercial refrigeration equipment | 33341 Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing |
| Manufacturing motor vehicle air-conditioning systems and compressors | 336390 Other Motor Vehicle Parts Manufacturing |
| Manufacturing material handling equipment | 33392 Material Handling Equipment Manufacturing |
| Manufacturing power-driven handtools | 333991 Power-Driven Handtool Manufacturing |
| Manufacturing welding and soldering equipment (except handheld soldering irons) | 333992 Welding and Soldering Equipment Manufacturing |
| Manufacturing packaging machinery | 333993 Packaging Machinery Manufacturing |
| Manufacturing bakery ovens | 333241 Food Product Machinery Manufacturing |
| Manufacturing cement, wood, and chemical kilns | 333248 All Other Industrial Machinery Manufacturing |
| Manufacturing industrial process furnaces and ovens (except bakery) | 333994 Industrial Process Furnace and Oven Manufacturing |
| Manufacturing fluid power cylinders and actuators | 333995 Fluid Power Cylinder and Actuator Manufacturing |
| Manufacturing fluid power pumps and motors | 333996 Fluid Power Pump and Motor Manufacturing |
| Manufacturing carnival and amusement park equipment, automotive maintenance equipment, and coin- or card-operated vending machines | 333310 Commercial and Service Industry Machinery Manufacturing |
Index entries (35)
- Aircraft carrier catapults manufacturing
- Baby scales manufacturing
- Balances, including laboratory-type, manufacturing
- Baling machinery (e.g., paper, scrap metal) manufacturing
- Bathroom scales manufacturing
- Bellows, industrial-type, manufacturing
- Bridge and gate lifting machinery manufacturing
- Centrifuges, industrial and laboratory-type, manufacturing
- Cremating ovens manufacturing
- Delicatessen scales manufacturing
- Filters, industrial and general purpose-type (except internal combustion engine, warm air furnace), manufacturing
- Gas generating machinery, general purpose-type, manufacturing
- Gas separating machinery manufacturing
- Gate and bridge lifting machinery manufacturing
- Ice crushers, industrial and commercial-type, manufacturing
- Industrial robot cells manufacturing
- Industrial robots manufacturing
- Industrial scales manufacturing
- Jacks, hydraulic and pneumatic, manufacturing
- Motor truck scales manufacturing
- Parcel post scales manufacturing
- Post office-type scales manufacturing
- Presses, metal baling, manufacturing
- Railroad track scales manufacturing
- Retail scales (e.g., butcher, delicatessen, produce) manufacturing
- Scales, including laboratory-type, manufacturing
- Screening and sifting machinery for general industrial use manufacturing
- Sieves and screening equipment, general purpose-type, manufacturing
- Sludge tables manufacturing
- Sprinkler systems, automatic fire, manufacturing
- Steam separating machinery manufacturing
- Strainers, pipeline, manufacturing
- Vapor separating machinery manufacturing
- Vehicle scales manufacturing
- Weather vanes manufacturing