SIC 3433 — Heating Equipment, Except Electric and Warm Air Furnaces
Description & Classification
SIC code 3433 representing 'Heating Equipment, Except Electric and Warm Air Furnaces' 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 333414 - Heating Equipment (except Warm Air Furnaces) Manufacturing (via SIC1987:3433→NAICS1997:333414→2002:333414→2007:333414→2012:333414→2017:333414→2022:333414)
Classification Details
| SIC Code | 3433 |
|---|---|
| Industry Title | Heating Equipment, Except Electric and Warm Air Furnaces |
| Division | Division D: Manufacturing |
| Major Group | Major Group 34: Fabricated Metal Products, Except Machinery and Transportation Equipment |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 3433:
- 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 34 Hub — View other legacy industries in this business division.
Related Industries in Major Group 34
Frequently Asked Questions (FAQ)
What industry does SIC code 3433 represent?
SIC 3433 is 'Heating Equipment, Except Electric and Warm Air Furnaces', a 4-digit Standard Industrial Classification (SIC) code under Major Group 34: Fabricated Metal Products, Except Machinery and Transportation Equipment (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 333414 (Heating Equipment (except Warm Air Furnaces) Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3433?
SIC code 3433 maps to modern NAICS codes: 333414 - Heating Equipment (except Warm Air Furnaces) Manufacturing.