NAICS 333923
Overview
The North American Industry Classification System (NAICS) is the production-oriented taxonomy federal statistical programs use to categorize establishments for collecting, analyzing, and publishing data on the U.S. economy. Created under the Office of Management and Budget in 1997 to replace SIC, NAICS is maintained jointly by the U.S., Canada, and Mexico and is currently implemented on the 2022 vintage across Census economic programs. 1
NAICS 333923 covers establishments primarily engaged in manufacturing overhead traveling cranes, hoists, and monorail systems. Federal data programs use this code to tabulate industry activity and to distinguish it from adjacent material-handling manufacturing industries within the Machinery Manufacturing subsector. 2
What this NAICS covers
- Overhead traveling bridge and gantry crane manufacturing. 2
- Industrial hoists and hoisting equipment manufacturing. 2
- Monorail and trolley material-handling system manufacturing. 2
- Winch manufacturing for lifting and pulling applications. 2
- Block and tackle assemblies and non-power-transmission pulley manufacturing. 2
- Integrated components and accessories integral to crane/hoist/monorail systems. 2
Related NAICS and PSC codes
| Type | Code | Descriptor |
|---|---|---|
| NAICS | 333921 | Elevator and Moving Stairway Manufacturing |
| NAICS | 333922 | Conveyor and Conveying Equipment Manufacturing |
| PSC | 3950 | Winches, Hoists, Cranes, and Derricks |
| PSC | J039 | Maintenance, Repair, and Rebuilding of Equipment—Materials Handling Equipment |
Cross‑references and exclusions
- Construction-type cranes are classified in NAICS 333120, not in 333923. 2
- Aircraft loading hoists fall under NAICS 333924. 2
- Power-transmission pulleys are classified in NAICS 333613; non-power-transmission pulleys remain in 333923. 2
Placement in the NAICS hierarchy
NAICS 333923 sits within Industry Group NAICS 33392, Material Handling Equipment Manufacturing, alongside NAICS 333921, 333922, and 333924, as reflected in official NAICS structure. 3
Frequently asked questions
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What businesses are included in NAICS 333923? Establishments that manufacture overhead traveling cranes, hoists, and monorail systems, including associated lifting equipment like winches and specified pulley systems used for hoisting. 2
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How does 333923 differ from 333922 or construction-type crane manufacturing? NAICS 333923 covers overhead cranes/hoists/monorails; NAICS 333922 covers conveyors, and construction-type cranes are in NAICS 333120. 2
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Did the 2022 NAICS update change code 333923? Not specified by official sources 1. The Census implementation page summarizes the 2022 transition and provides bridges for changed industries.
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Where can official Census data for 333923 be found? Census releases 2022 Economic Census tables by industry on a flow basis. Use Economic Census by Industry to access formatted tables and files; data can also be explored on data.census.gov. 4
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Which PSC codes frequently align with 333923 purchases? For supplies, PSC 3950 covers winches, hoists, cranes, and derricks; for services, PSC J039 covers maintenance/repair of materials handling equipment. Always select the PSC that reflects “what was bought.” 5
Useful resources
- G2X — NAICS 333923
- Census NAICS 2022 — industry details for 333923: https://www.census.gov/naics/?input=333923&year=2022&details=333923
- Census — The Census Bureau’s implementation of the 2022 NAICS: https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html
- U.S. Census Bureau — Economic Census by Industry: https://www.census.gov/programs-surveys/economic-census/data/tables/industry.html
- GSA — Product and Service Codes (PSC) Manual (April 2025): https://www.acquisition.gov/content/psc-manual-april-2025.pdf
References
- U.S. Census Bureau — The Census Bureau’s Implementation of the 2022 NAICS, including overview and transition timeline. https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html
- U.S. Census Bureau — NAICS 2022, Industry 333923: Overhead Traveling Crane, Hoist, and Monorail System Manufacturing (official definition, examples, and cross-references). https://www.census.gov/naics/?input=333923&year=2022&details=333923
- U.S. Census Bureau — NAICS 2022, Industry Group 33392: Material Handling Equipment Manufacturing. https://www.census.gov/naics/?input=33392&year=2022&details=33392
- U.S. Census Bureau — Economic Census by Industry (access to 2022 industry tables and files). https://www.census.gov/programs-surveys/economic-census/data/tables/industry.html
- U.S. General Services Administration — Product and Service Codes (PSC) Manual, April 2025 (PSC descriptions including 3950 and J039). https://www.acquisition.gov/content/psc-manual-april-2025.pdf
Active Federal Contract Opportunities for NAICS 333923
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