SIC 3549 — Metalworking Machinery, NEC
Description & Classification
SIC code 3549 representing 'Metalworking Machinery, NEC' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 333519 - Rolling Mill and Other Metalworking Machinery Manufacturing (via SIC1987:3549→NAICS1997:333518→2002:333518→2007:333518→2012:333519→2017:333519→2022:333519)
Classification Details
| SIC Code | 3549 |
|---|---|
| Industry Title | Metalworking Machinery, NEC |
| Division | Division D: Manufacturing |
| Major Group | Major Group 35: Industrial and Commercial Machinery and Computer Equipment |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 3549:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 35 Hub — View other legacy industries in this business division.
Related Industries in Major Group 35
Frequently Asked Questions (FAQ)
What industry does SIC code 3549 represent?
SIC 3549 is 'Metalworking Machinery, NEC', a 4-digit Standard Industrial Classification (SIC) code under Major Group 35: Industrial and Commercial Machinery and Computer Equipment (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 333519 (Rolling Mill and Other Metalworking Machinery Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3549?
SIC code 3549 maps to modern NAICS codes: 333519 - Rolling Mill and Other Metalworking Machinery Manufacturing.