SIC 3511 — Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units
Description & Classification
SIC code 3511 representing 'Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units' 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 333611 - Turbine and Turbine Generator Set Units Manufacturing (via SIC1987:3511→NAICS1997:333611→2002:333611→2007:333611→2012:333611→2017:333611→2022:333611)
Classification Details
| SIC Code | 3511 |
|---|---|
| Industry Title | Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units |
| 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 3511:
- 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 3511 represent?
SIC 3511 is 'Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units', 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): 333611 (Turbine and Turbine Generator Set Units Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3511?
SIC code 3511 maps to modern NAICS codes: 333611 - Turbine and Turbine Generator Set Units Manufacturing.