NAICS 332410

Overview

The North American Industry Classification System (NAICS) is the federal standard for grouping business establishments to collect, analyze, and publish statistics on the U.S. economy. Developed under the Office of Management and Budget and adopted in 1997, NAICS was created jointly with Statistics Canada and Mexico’s INEGI to ensure cross‑country comparability; the current searchable structure includes the 2022 vintage. ¹

NAICS 332410 covers establishments primarily engaged in manufacturing power boilers and heat exchangers. Per the official description, establishments in this industry may also perform installation in addition to manufacturing the equipment. Federal buyers use this code to classify procurements for boiler and heat‑exchanger production from dedicated manufacturing establishments. ²

See also on G2X:

• G2X — NAICS 332410 overview: https://app.g2xchange.com/naics/332410
• G2X — PSC 4410 Industrial Boilers: https://app.g2xchange.com/psc/4410
• G2X — NAICS 332420 Metal Tank (Heavy Gauge) Manufacturing: https://app.g2xchange.com/naics/332420

What this NAICS covers

• Manufacturing of power boilers. ²
• Manufacturing of heat exchangers. ²
• Installation work performed by the same establishment that manufactures the power boilers and heat exchangers. ²
• Activities situated within the Boiler, Tank, and Shipping Container Manufacturing industry group. ²
• Production classified separately from light/heavy tank manufacturing and from warm‑air heating equipment manufacturing. ²

Related NAICS and PSC codes

Frequently asked questions

• What products are covered under NAICS 332410?

  Establishments primarily engaged in manufacturing power boilers and heat exchangers are classified here. Coverage applies whether units are shop‑fabricated or field‑erected, so long as the establishment’s primary activity is manufacturing these products for sale to industrial, utility, marine, or other end uses. ²

• Does NAICS 332410 include installation or on‑site assembly work?

  Yes. Installation and on‑site assembly performed by the same establishment that manufactures the power boilers or heat exchangers are included in this industry classification as incidental to manufacturing. If a non‑manufacturer performs installation only, see contractor classifications (e.g., 238220). ²

• How should an install‑only or retrofit contract be coded if no manufacturing occurs?

  When the vendor is not manufacturing the boiler or heat exchanger and is only installing, retrofitting, or replacing equipment, agencies typically use Plumbing, Heating, and Air‑Conditioning Contractors NAICS 238220, consistent with NAICS rules for specialty trade contractors performing installation services. ⁴

• Which PSC codes commonly align with NAICS 332410 buys?

  Industrial boilers generally map to PSC 4410, and heat exchangers typically map to PSC 4420. Select the PSC that best matches the predominant deliverable when structuring solicitations or reporting. ⁸

• What is the SBA small business size standard for NAICS 332410?

  SBA applies an employee‑based size standard to this NAICS. Refer to SBA’s Table of Small Business Size Standards for the current employee threshold to determine small business eligibility; thresholds can change, so always consult the latest official table. ³

Useful resources

• Census NAICS 2022 detail for NAICS 332410 — official definition, examples, and cross‑references. https://www.census.gov/naics/?input=332410&year=2022&details=332410 ²
• NAICS official portal and searchable structure — browse the 2022 hierarchy, definitions, and concordances. https://www.census.gov/naics/ ¹
• SBA Table of Small Business Size Standards — current employee‑based threshold for NAICS categories including 332410. https://www.sba.gov/federal-contracting/contracting-guide/size-standards ³
• Related NAICS 332420 (Metal Tank (Heavy Gauge) Manufacturing) — official definition for heavy‑gauge tanks and pressure vessels. https://www.census.gov/naics/?input=332420&year=2022&details=332420 ⁶
• Related NAICS 333414 (Heating Equipment (except Warm Air Furnaces) Manufacturing) — official definition for space/process heating equipment. https://www.census.gov/naics/?input=333414&year=2022&details=333414 ⁵
• Contractor NAICS 238220 (Plumbing, Heating, and Air‑Conditioning Contractors) — for install‑only work when no manufacturing occurs. https://www.census.gov/naics/?input=238220&year=2022&details=238220 ⁴
• Service NAICS 811310 (Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance) — for standalone maintenance/repair. https://www.census.gov/naics/?input=811310&year=2022&details=811310 ⁷
• PSC Manual — official Product and Service Code definitions and guidance for selecting PSCs such as 4410 Industrial Boilers and 4420 Heat Exchangers and Steam Condensers. https://www.acquisition.gov/psc-manual ⁸

References

1. U.S. Census Bureau. North American Industry Classification System (NAICS) — Official Site. https://www.census.gov/naics/
2. U.S. Census Bureau. 2022 NAICS Search — Detail for “Power Boiler and Heat Exchanger Manufacturing.” https://www.census.gov/naics/?input=332410&year=2022&details=332410
3. U.S. Small Business Administration. Table of Small Business Size Standards. https://www.sba.gov/federal-contracting/contracting-guide/size-standards
4. U.S. Census Bureau. 2022 NAICS Search — Detail for “Plumbing, Heating, and Air‑Conditioning Contractors.” https://www.census.gov/naics/?input=238220&year=2022&details=238220
5. U.S. Census Bureau. 2022 NAICS Search — Detail for “Heating Equipment (except Warm Air Furnaces) Manufacturing.” https://www.census.gov/naics/?input=333414&year=2022&details=333414
6. U.S. Census Bureau. 2022 NAICS Search — Detail for “Metal Tank (Heavy Gauge) Manufacturing.” https://www.census.gov/naics/?input=332420&year=2022&details=332420
7. U.S. Census Bureau. 2022 NAICS Search — Detail for “Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance.” https://www.census.gov/naics/?input=811310&year=2022&details=811310
8. U.S. General Services Administration. Product and Service Codes (PSC) Manual. https://www.acquisition.gov/psc-manual