333992 — Welding and Soldering Equipment Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing welding and soldering equipment and accessories (except transformers), such as arc, resistance, gas, plasma, laser, electron beam, and ultrasonic welding equipment; welding electrodes; coated or cored welding wire; and soldering equipment (except handheld) (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Manufacturing handheld soldering irons--are classified in U.S. Industry 332216, Saw Blade and Handtool
- Manufacturing; and
- Manufacturing arc-welding transformers--are classified in U.S. Industry 335311, Power, Distribution, and
- Specialty Transformer Manufacturing.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3548 - Electric and Gas Welding and Soldering Equipment (via SIC1987:3548→NAICS1997:333992→2002:333992→2007:333992→2012:333992→2017:333992→2022:333992)
- SIC 3699 - Electrical Machinery Equipment, and Supplies, NEC (via SIC1987:3699→NAICS1997:333992→2002:333992→2007:333992→2012:333992→2017:333992→2022:333992)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3431 — Electric Arc Welding Equipment
- PSC 3432 — Electric Resistance Welding Equipment
- PSC 3433 — Gas Welding, Heat Cutting, and Metalizing Equipment
- PSC 3436 — Welding Positioners and Manipulators
- PSC 3438 — Miscellaneous Welding Equipment
- PSC 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 333992 valid in 2022? ▾
Yes, 333992 is a valid 6-digit 2022 NAICS national industry code representing 'Welding and Soldering Equipment Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 333992? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,250 employees for NAICS code 333992 (Welding and Soldering Equipment Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 333992? ▾
According to official Census Bureau concordance tables, NAICS code 333992 (Welding and Soldering Equipment Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3548 - Electric and Gas Welding and Soldering Equipment, 3699 - Electrical Machinery Equipment, and Supplies, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 333992:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 333992 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Welding and Soldering Equipment Manufacturing).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.