333519 — Rolling Mill and Other Metalworking Machinery Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing rolling mill machinery and equipment and/or other metalworking machinery (except industrial molds; special dies and tools, die sets, jigs, and fixtures; cutting tools and machine tool accessories; and machine tools).
Illustrative Examples
- Assembly machines (i.e., wire making equipment) manufacturing
- Cradle assembly machinery (i.e., wire making equipment) manufacturing
- Metalworking coil winding and cutting machinery manufacturing
- Rolling mill roll machines, metalworking, manufacturing
- Wire drawing and fabricating machinery and equipment (except dies) manufacturing
Exclusions & Cross-References
- Manufacturing industrial molds--are classified in U.S. Industry 333511, Industrial Mold Manufacturing;
- Manufacturing metal cutting and metal forming machine tools--are classified in U.S. Industry 333517,
- Machine Tool Manufacturing;
- Manufacturing special dies and tools, die sets, jigs, and fixtures--are classified in U.S. Industry 333514,
- Special Die and Tool, Die Set, Jig, and Fixture Manufacturing; and
- Manufacturing accessories and attachments for metal cutting and forming machine tools (except saw
- blades)--are classified in U.S. Industry 333515, Cutting Tool and Machine Tool Accessory Manufacturing.
Overview Facts
| NAICS Code | 333519 |
|---|---|
| Industry Title | Rolling Mill and Other Metalworking Machinery Manufacturing |
| SBA Size Standard | 500 employees |
| IRS PBA Code | 333510 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 333 → 3335 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3547 - Rolling Mill Machinery and Equipment (via SIC1987:3547→NAICS1997:333516→2002:333516→2007:333516→2012:333519→2017:333519→2022:333519)
- SIC 3549 - Metalworking Machinery, NEC (via SIC1987:3549→NAICS1997:333518→2002:333518→2007:333518→2012:333519→2017:333519→2022:333519)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 333519:
- 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.
- 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.
Related Industries in 3335
Frequently Asked Questions (FAQ)
Is 333519 a valid 2022 NAICS code?
NAICS 333519 is 'Rolling Mill and Other Metalworking Machinery Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 500 employees.
What is the SBA size standard for NAICS 333519?
The SBA small business size standard for NAICS 333519 is 500 employees (based on employees).
What is the legacy SIC code mapping for 333519?
NAICS code 333519 maps to the legacy 1987 SIC codes: 3547 - Rolling Mill Machinery and Equipment, 3549 - Metalworking Machinery, NEC.