NAICS 333414 to SIC Code Crosswalk
The NAICS code 333414 (Heating Equipment (except Warm Air Furnaces) Manufacturing) maps transitively to legacy 1987 SIC classification code(s): 2499, 3433, 3443, 3444, 3569, 3634.
Concordance Concordance Mapping Asset
| Source Code | Source Industry | Target Code | Target Industry | Relation | Concordance Path |
|---|---|---|---|---|---|
| NAICS 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | SIC 2499 | Wood Products, NEC | Many-to-Many | SIC1987:2499 → NAICS1997:333414 → 2002:333414 → 2007:333414 → 2012:333414 → 2017:333414 → 2022:333414 |
| NAICS 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | SIC 3433 | Heating Equipment, Except Electric and Warm Air Furnaces | Many-to-Many | SIC1987:3433 → NAICS1997:333414 → 2002:333414 → 2007:333414 → 2012:333414 → 2017:333414 → 2022:333414 |
| NAICS 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | SIC 3443 | Fabricated Plate Work | Many-to-Many | SIC1987:3443 → NAICS1997:333414 → 2002:333414 → 2007:333414 → 2012:333414 → 2017:333414 → 2022:333414 |
| NAICS 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | SIC 3444 | Sheet Metal Work | Many-to-Many | SIC1987:3444 → NAICS1997:333414 → 2002:333414 → 2007:333414 → 2012:333414 → 2017:333414 → 2022:333414 |
| NAICS 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | SIC 3569 | General Industrial Machinery and Equipment, NEC | Many-to-Many | SIC1987:3569 → NAICS1997:333414 → 2002:333414 → 2007:333414 → 2012:333414 → 2017:333414 → 2022:333414 |
| NAICS 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | SIC 3634 | Electric Housewares and Fans | Many-to-Many | SIC1987:3634 → NAICS1997:333414 → 2002:333414 → 2007:333414 → 2012:333414 → 2017:333414 → 2022:333414 |
Why Concordances Don't Line Up 1:1
The Standard Industrial Classification (SIC) system was established in 1937 and last updated in 1987, organizing businesses by end products. The North American Industry Classification System (NAICS) replaced it in 1997, classifying establishments by production processes. Because of this structural shift, many-to-many relationships are common, requiring chained concordance steps to bridge the historical gap.
Reverse Crosswalk: Going the other way? See the mapping at SIC 2499 to NAICS, SIC 3433 to NAICS, SIC 3443 to NAICS, SIC 3444 to NAICS, SIC 3569 to NAICS, SIC 3634 to NAICS.
Related Pages & Tools
- NAICS Code 333414 Profile — Official definition, SBA size standards, and establishment statistics.
- Sector 31-33 Hub (Manufacturing) — Category directories.
- Interactive Crosswalk Engine — Convert any SIC or NAICS code dynamically.
Primary Ingestion Source
Data sourced from the U.S. Census Bureau Concordances (1997, 2002, 2007, 2012, 2017, and 2022 editions). Last verified on 2026-06-30.