333998 All Other Miscellaneous General Purpose Machinery Manufacturing

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).

Examples Census gives

• 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, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Manufacturing ventilating, heating, air-conditioning (except motor vehicle), and commercial refrigeration equipment are classified in Industry 33341, Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing.
• Manufacturing motor vehicle air-conditioning systems and compressors are classified in Industry 336390, Other Motor Vehicle Parts Manufacturing.
• Manufacturing material handling equipment are classified in Industry 33392, Material Handling Equipment Manufacturing.
• Manufacturing power-driven handtools are classified in U.S. Industry 333991, Power-Driven Handtool Manufacturing.
• Manufacturing welding and soldering equipment (except handheld soldering irons) are classified in U.S. Industry 333992, Welding and Soldering Equipment Manufacturing.
• Manufacturing packaging machinery are classified in U.S. Industry 333993, Packaging Machinery Manufacturing.
• Manufacturing bakery ovens are classified in U.S. Industry 333241, Food Product Machinery Manufacturing.
• Manufacturing cement, wood, and chemical kilns are classified in U.S. Industry 333248, All Other Industrial Machinery Manufacturing.
• Manufacturing industrial process furnaces and ovens (except bakery) are classified in U.S. Industry 333994, Industrial Process Furnace and Oven Manufacturing.
• Manufacturing fluid power cylinders and actuators are classified in U.S. Industry 333995, Fluid Power Cylinder and Actuator Manufacturing.
• Manufacturing fluid power pumps and motors are classified in U.S. Industry 333996, Fluid Power Pump and Motor Manufacturing.
• Manufacturing carnival and amusement park equipment, automotive maintenance equipment, and coin- or card-operated vending machines are classified in Industry 333310, Commercial and Service Industry Machinery Manufacturing.
• Manufacturing motor vehicle engine filters and pumps are classified in Industry Group 3363, Motor Vehicle Parts Manufacturing.
• Manufacturing mechanical jacks are classified in U.S. Industry 332216, Saw Blade and Handtool Manufacturing.

Source: US Census Bureau, 2022 NAICS cross-references.

Activities listed under 333998

The Census index assigns these 35 activities to this code. If your business matches one, this is your code.

• 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

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 333998

To count as a small business for SBA loans and federal contracts under NAICS 333998, your business (including affiliates) must not exceed 700 employees. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2651, 2819, 2599, 2815, 2816, 2829, 3250), so treat them as a starting point and check the definition.

• 25990Manufacture of other fabricated metal products n.e.c.UK SIC
• 26511Manufacture of electronic measuring, testing etc. equipment, not for industrial process controlUK SIC
• 26512Manufacture of electronic industrial process control equipmentUK SIC
• 26513Manufacture of non-electronic measuring, testing etc. equipment, not for industrial process controlUK SIC
• 26514Manufacture of non-electronic industrial process control equipmentUK SIC
• 28150Manufacture of bearings, gears, gearing and driving elementsUK SIC
• 28290Manufacture of other general-purpose machinery n.e.c.UK SIC
• 32500Manufacture of medical and dental instruments and suppliesUK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 333991Power-Driven Handtool Manufacturing
• 333992Welding and Soldering Equipment Manufacturing
• 333993Packaging Machinery Manufacturing
• 333994Industrial Process Furnace and Oven Manufacturing
• 333995Fluid Power Cylinder and Actuator Manufacturing
• 333996Fluid Power Pump and Motor Manufacturing