Analysis
NAICS 33399 is the 2022 NAICS industry for all other general purpose machinery manufacturing, part of 3339 (Other General Purpose Machinery Manufacturing). Census lists 128 example activities under it in the official index.
County Business Patterns counts 3,460 US establishments in this code in 2023, employing 158,898 people at an average annual payroll of $82,230 per employee (71st percentile of national industries). 30% of the establishments have fewer than five employees, which is close to the national mix.
By establishments it ranks 1st of the 3 codes at this level within Other General Purpose Machinery Manufacturing, with 58.2% of them.
Census lists 11 related activities that belong elsewhere, most often in 33341, 3336, 33391 and 33392. 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.
Across its national industries Census lists 128 index entries; typical ones are buffing machines, handheld power-driven, manufacturing, arc-welding equipment manufacturing, bag opening, filling, and closing machines manufacturing and ceramic kilns and furnaces manufacturing.
Its goods appear in 125 statistical lines of the US tariff schedule, mostly under headings 8467 (tools for working in the hand, pneumatic, hydraulic or with…), 8422 (dishwashing machines; machinery for cleaning or drying…) and 8412 (other engines and motors, and parts thereof). That link is how import data is matched to domestic producers, for example in trade-remedy cases.
Official definition
This industry comprises establishments primarily engaged in manufacturing general purpose machinery (except ventilation, heating, air-conditioning, and commercial refrigeration equipment; metalworking machinery; engines, turbines, and power transmission equipment; pumps and compressors; and material handling equipment).
Illustrative Examples:
Automatic fire sprinkler systems manufacturing Bridge and gate lifting machinery manufacturing Fluid power cylinders manufacturing Fluid power pumps manufacturing Hydraulic and pneumatic jacks manufacturing Industrial-type furnaces manufacturing Packaging machinery manufacturing Power-driven handtools manufacturing Scales and balances manufacturing Welding equipment 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), commercial refrigeration, and furnace filters | 33341 Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing |
| Manufacturing engine, turbine, and power transmission equipment | 3336 Engine, Turbine, and Power Transmission Equipment Manufacturing |
| Manufacturing pumps and compressors | 33391 Pump and Compressor Manufacturing |
| Manufacturing material handling equipment | 33392 Material Handling Equipment Manufacturing |
| Manufacturing motor vehicle air-conditioning systems and compressors, engine filters, and pumps | 3363 Motor Vehicle Parts Manufacturing |
| Manufacturing metal cutting, metal forming, and other metalworking machinery | 33351 Metalworking Machinery Manufacturing |
| Manufacturing power-driven heavy construction or mining hand operated tools, such as tampers, jackhammers, and augers | 33312 Construction Machinery Manufacturing, or Industry 33313, Mining and Oil and Gas Field Machinery Manufacturing |
| Manufacturing bakery ovens and industrial kilns, such as cement, wood, and chemical | 33324 Industrial Machinery Manufacturing |
| Manufacturing mechanical jacks, handheld soldering irons, countersink bits, drill bits, router bits, milling cutters, and other machine tools for woodcutting | 33221 Cutlery and Handtool Manufacturing |
| Manufacturing carnival and amusement park equipment, automotive maintenance equipment, and coin- or card-operated vending machines | 33331 Commercial and Service Industry Machinery Manufacturing |
| Manufacturing arc-welding transformers | 33531 Electrical Equipment Manufacturing |
Index entries (128)
- Buffing machines, handheld power-driven, manufacturing
- Arc-welding equipment manufacturing
- Bag opening, filling, and closing machines manufacturing
- Ceramic kilns and furnaces manufacturing
- Actuators, fluid power, manufacturing
- Fluid power motors manufacturing
- Aircraft carrier catapults manufacturing