SIC 3743 — Railroad Equipment
Description & Classification
SIC code 3743 representing 'Railroad Equipment' 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 333914 - Measuring, Dispensing, and Other Pumping Equipment Manufacturing (via SIC1987:3743→NAICS1997:333911→2002:333911→2007:333911→2012:333911→2017:333914→2022:333914)
- NAICS 336510 - Railroad Rolling Stock Manufacturing (via SIC1987:3743→NAICS1997:33651→2002:336510→2007:336510→2012:336510→2017:336510→2022:336510)
Classification Details
| SIC Code | 3743 |
|---|---|
| Industry Title | Railroad Equipment |
| Division | Division D: Manufacturing |
| Major Group | Major Group 37: Transportation Equipment |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 3743:
- 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 37 Hub — View other legacy industries in this business division.
Related Industries in Major Group 37
Frequently Asked Questions (FAQ)
What industry does SIC code 3743 represent?
SIC 3743 is 'Railroad Equipment', a 4-digit Standard Industrial Classification (SIC) code under Major Group 37: Transportation Equipment (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 333914 (Measuring, Dispensing, and Other Pumping Equipment Manufacturing), 336510 (Railroad Rolling Stock Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3743?
SIC code 3743 maps to modern NAICS codes: 333914 - Measuring, Dispensing, and Other Pumping Equipment Manufacturing, 336510 - Railroad Rolling Stock Manufacturing.