NAICS 333519

Overview

The North American Industry Classification System (NAICS) is the federal statistical standard for grouping business establishments to collect, analyze, and publish data on the U.S. economy. Developed under the Office of Management and Budget with Canada and Mexico, NAICS replaced SIC in 1997 and is updated every five years; the current vintage is 2022. ¹

NAICS 333519 — Rolling Mill and Other Metalworking Machinery Manufacturing — is a 2022 six-digit national industry within manufacturing used by federal statistical programs to tabulate data on establishments producing rolling-mill and other metalworking machinery. The title and code appear in official Census NAICS listings. ²

See also on G2X:

• G2X — NAICS 333512
• G2X — NAICS 333513

What this NAICS covers

• Rolling mill machinery used in metal production and processing. ³
• Rolling mills and drawing/fabricating machines used for shaping metal. ³
• Coil handling, conversion, and straightening equipment for metalworking lines. ³
• Wire drawing and metal fabricating machines. ³
• Assembly machinery integral to metalworking production systems. ³
• Other metalworking machinery within the metalworking machinery group not covered by mold or machine tool industries. ³

Related NAICS and PSC codes

Industry structure and boundaries

NAICS uses a hierarchical structure from sectors to six-digit national industries. 333519 sits under industry group 33351 (Metalworking Machinery Manufacturing), distinct from adjacent machine tool industries such as 333512 and 333513. ⁶

2022 NAICS adoption in federal statistics

Census programs began publishing on the 2022 NAICS basis with the 2022 Economic Census and are transitioning through 2027; bridge/concordance files document code changes between 2017 and 2022. ¹

Frequently asked questions

• What changed with NAICS in 2022 that affects 333519?

  • The Census Bureau adopted the 2022 NAICS across programs, providing concordances and bridge tables to compare 2017 and 2022 codes; users should consult these files to see any code realignments affecting metalworking machinery. ¹

• What products are typically included under 333519?

  • Examples in the metalworking machinery group include rolling-mill machinery, coil handling/straightening equipment, and wire drawing/fabricating machines; these illustrate the kinds of equipment encompassed by the group containing 333519. ³

• Where is 333519 used in federal data?

  • It is used in the 2022 Economic Census and other Census economic programs as they transition to the 2022 NAICS, with full adoption targeted by the end of 2027. ¹

• How does 333519 differ from machine tool codes like 333512 and 333513?

  • Machine tool codes focus on metal-cutting and metal-forming machine tools, while 333519 covers rolling-mill and other metalworking machinery within the broader metalworking machinery category used by Census classifications. ⁴

• What is the hierarchical placement of 333519?

  • 333519 is a six-digit national industry under industry group 33351 (Metalworking Machinery Manufacturing) in subsector 333 (Machinery Manufacturing). ⁷

Useful resources

• G2X — NAICS 333519 overview
• Census: Implementation of the 2022 NAICS (transition timeline, concordances). ¹
• Census: Economic Census by Industry (2022 tables by NAICS). ⁸
• Census NAICS 2022 code detail for 333519 (official title/definition). ²

References

1. U.S. Census Bureau. The Census Bureau’s Implementation of the 2022 NAICS. https://www.census.gov/naics/reference-files-tools/2022-implementation.html
2. U.S. Census Bureau. NAICS 2022 Search — 333519 Rolling Mill and Other Metalworking Machinery Manufacturing. https://www.census.gov/naics/?input=333519&year=2022&details=
3. U.S. Census Bureau. NAICS 2022 Search — 333519 Rolling Mill and Other Metalworking Machinery Manufacturing (scope and examples). https://www.census.gov/naics/?input=333519&year=2022&details=
4. U.S. Census Bureau. NAICS 2022 Search — 33351 Metalworking Machinery Manufacturing (includes 333512 and 333513). https://www.census.gov/naics/?input=33351&year=2022&details=
5. PSC Tool. Federal Supply Class 34 — Metalworking Machinery (includes PSC 3422, 3445). https://psctool.us/fsc/view?id=34
6. U.S. Census Bureau. 2022 NAICS Manual (structure and hierarchy). https://www.census.gov/naics/reference-files-tools/2022_NAICS_Manual.pdf
7. U.S. Bureau of Labor Statistics. NAICS 2022 Classifications (hierarchy browser). https://www.bls.gov/cew/classifications/naics-2022.htm
8. U.S. Census Bureau. Economic Census — Data Tables. https://www.census.gov/programs-surveys/economic-census/data/tables.html