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NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01
332410

NAICS 332410 — Power Boiler and Heat Exchanger Manufacturing

Power Boiler and Heat Exchanger Manufacturing

NAICS 332410 is the national industry code for power boiler and heat exchanger manufacturing establishments in the United States. The Small Business Administration sets a size standard of 750 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: 750 View full SBA standard

Official Inclusions

  • power boiler and heat exchanger fabrication and installation

Exclusions & Cross-References

Activities classified under other official NAICS codes:

  • erecting purchased boilers (See 238220 Plumbing, heating and air-conditioning contractors (US))
  • manufacturing cast iron sectional heating boilers (See 333416 Heating equipment and commercial refrigeration equipment manufacturing (CAN))

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

condenser boxes, metal, manufacturing heat exchangers, manufacturing intercooler shells, manufacturing nuclear reactor steam supply systems, manufacturing nuclear reactors, manufacturing power boilers, manufacturing
Complete Index of Activities (18 recognized activities) ▼
aftercoolers (i.e., heat exchangers), manufacturing
air preheaters for boilers, manufacturing
barometric condensers, manufacturing
boiler casings, manufacturing
condenser boxes, metal, manufacturing
economizers (i.e., power boiler apparatus), manufacturing
heat exchangers, manufacturing
intercooler shells, manufacturing
marine power boilers, manufacturing
nuclear bundles and control rods, made from purchased fuel
nuclear reactor control rod drive mechanisms, manufacturing
nuclear reactor steam supply systems, manufacturing
nuclear reactors, manufacturing
power boiler and heat exchanger fabrication and installation
power boiler and heat exchanger manufacturing
power boilers, manufacturing
steam condensers, manufacturing
superheaters for boilers, manufacturing

Official data

Feature Description
Official name North American Industry Classification System (NAICS) 2022
Issuing authority U.S. Census Bureau with OMB, Statistics Canada, and INEGI
Tax authority Internal Revenue Service (IRS)
Purpose Statistical business classification and federal contracting (SAM.gov, SBA standards)
Used in SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk)
Active since 2022 (current edition)
Hierarchy level Sector (2-digit)
Source https://www.census.gov/naics/

NAICS hierarchy path

Trace the classification from the broadest sector down to this national industry code.

Cross-references & crosswalks

NAICS 2017 equivalent 332410

Power Boiler and Heat Exchanger Manufacturing

View full 2022 → 2017 crosswalk
SBA size standard description

Power Boiler and Heat Exchanger Manufacturing

Changes to receipts-based standard: [object Object]

Trade codes using this NAICS

These Schedule B export codes explicitly reference NAICS 332410 in the Census trade classification files.

Search this code across systems

Official resources