332410 — Power Boiler and Heat Exchanger Manufacturing
Description
This industry comprises establishments primarily engaged in manufacturing power boilers and heat exchangers. Establishments in this industry may perform installation in addition to manufacturing power boilers and heat exchangers (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3443 - Fabricated Plate Work (via SIC1987:3443→NAICS1997:33241→2002:332410→2007:332410→2012:332410→2017:332410→2022:332410)
- SIC 3559 - Special Industry Machinery, NEC (via SIC1987:3559→NAICS1997:33241→2002:332410→2007:332410→2012:332410→2017:332410→2022:332410)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 4410 — Industrial Boilers
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 332410 valid in 2022? ▾
Yes, 332410 is a valid 6-digit 2022 NAICS national industry code representing 'Power Boiler and Heat Exchanger Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 332410? ▾
The Small Business Administration (SBA) has established a small business size standard of 750 employees for NAICS code 332410 (Power Boiler and Heat Exchanger Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 332410? ▾
According to official Census Bureau concordance tables, NAICS code 332410 (Power Boiler and Heat Exchanger Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3443 - Fabricated Plate Work, 3559 - Special Industry Machinery, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 332410:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 332410 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Power Boiler and Heat Exchanger Manufacturing).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.