333120 — Construction Machinery Manufacturing
Description
This industry comprises establishments primarily engaged in manufacturing construction machinery, surface mining machinery, and logging equipment (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Illustrative Examples
- Backhoes manufacturing
- Bulldozers manufacturing
- Construction and surface mining-type rock drill bits manufacturing
- Construction-type tractors and attachments manufacturing
- Off-highway trucks manufacturing
- Pile-driving equipment manufacturing
- Portable crushing, pulverizing, and screening machinery manufacturing
- Powered post hole diggers manufacturing
- Road graders manufacturing
- Surface mining machinery (except drilling) manufacturing
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 3531 - Construction Machinery and Equipment (via SIC1987:3531→NAICS1997:33312→2002:333120→2007:333120→2012:333120→2017:333120→2022:333120)
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 3805 — Earth Moving and Excavating Equipment
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 333120 valid in 2022? ▾
Yes, 333120 is a valid 6-digit 2022 NAICS national industry code representing 'Construction Machinery Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 333120? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,250 employees for NAICS code 333120 (Construction Machinery Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 333120? ▾
According to official Census Bureau concordance tables, NAICS code 333120 (Construction Machinery Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3531 - Construction Machinery and Equipment.
Related Pages & Tools
Further regulatory reference links for NAICS code 333120:
- 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 333120 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Construction Machinery 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.