NAICS 333992

Overview

The North American Industry Classification System (NAICS) is the federal statistical standard used to classify business establishments for the collection, analysis, and publication of U.S. economic data. Developed under the Office of Management and Budget and adopted in 1997 to replace SIC, NAICS is a production‑oriented taxonomy created jointly with Statistics Canada and Mexico’s statistical agency. It organizes establishments by similarity in production processes to support consistent comparisons across industries and over time. ¹

Under NAICS 333992, Welding and Soldering Equipment Manufacturing, establishments primarily manufacture welding and soldering equipment and accessories (except transformers), including arc, resistance, gas, plasma, laser, electron beam, and ultrasonic welding equipment; welding electrodes; coated or cored welding wire; and non‑handheld soldering equipment. Federal statistical programs use this code to tabulate industry data within the manufacturing sector. ²

See also on G2X:

• G2X — NAICS 333992 overview
• NAICS 333512
• NAICS 333513

What this NAICS covers

• Arc welding equipment manufacturing. ²
• Resistance welding equipment manufacturing. ²
• Gas welding and heat‑cutting equipment manufacturing. ²
• Plasma, laser, electron‑beam, and ultrasonic welding equipment manufacturing. ²
• Welding electrodes and coated or cored welding wire manufacturing. ²
• Non‑handheld soldering equipment manufacturing. ²
• Accessories for welding and soldering equipment (except transformers). ²

Related NAICS and PSC codes

Type	Code	Descriptor
NAICS	333512	Machine Tool (Metal Cutting Types) Manufacturing; cross‑references welding/soldering equipment to 333992. 2
NAICS	333513	Machine Tool (Metal Forming Types) Manufacturing; cross‑references welding/soldering equipment to 333992. 2
PSC	3431	Electric Arc Welding Equipment (product PSC). 4
PSC	3433	Gas Welding, Heat Cutting & Metalizing Equipment (product PSC). 4

Scope notes and exclusions (2022 NAICS)

• The scope explicitly excludes transformers used with welding or soldering equipment. Not specified by official sources where transformers are classified. ²
• Handheld soldering equipment is excluded; only non‑handheld soldering equipment is in 333992. The specific classification for handheld soldering equipment is Not specified by official sources in the 333992 definition. ²
• Census programs are transitioning publications to the 2022 vintage; most NAICS‑based programs are planned to complete the transition by the end of 2027. ³

Frequently asked questions

• What products fall under NAICS 333992?

  • Equipment for arc, resistance, gas, plasma, laser, electron‑beam, and ultrasonic welding; welding electrodes; coated or cored welding wire; and non‑handheld soldering equipment are included. Transformers and handheld soldering tools are excluded. ²

• How does 333992 differ from 333512 and 333513?

  • NAICS 333512 and 333513 cover metal‑cutting and metal‑forming machine tools, respectively. Both explicitly cross‑reference welding and soldering equipment to 333992. ²

• Which PSC codes are commonly paired with welding/soldering equipment buys?

  • Common product PSCs include 3431 (Electric Arc Welding Equipment), 3432 (Electric Resistance Welding Equipment), 3433 (Gas Welding, Heat Cutting & Metalizing Equipment), and 3436 (Welding Positioners and Manipulators). ⁴

• What is the current NAICS vintage in Census publications, and when will all programs use it?

  • The current vintage is 2022. Census began disseminating data on the 2022 basis with the 2022 Economic Census and plans to transition most NAICS‑based programs by the end of 2027. ³

• Are handheld soldering irons classified in 333992?

  • No. The industry definition includes soldering equipment except handheld. The specific classification for handheld soldering equipment is Not specified by official sources in the 333992 scope note. ²

Useful resources

• G2X — NAICS 333992 overview
• U.S. Census Bureau: NAICS entry for 333992. ²
• The Census Bureau’s Implementation of the 2022 NAICS (overview and timeline). ³
• 2022 Economic Census — Industry tables by NAICS (Manufacturing sectors). ⁵
• 2022 NAICS Descriptions (official reference file). ⁶

References

1. U.S. Census Bureau — 2017 North American Industry Classification System (NAICS) Manual (overview and definition). https://www.census.gov/library/publications/2017/econ/2017-naics-manual.html
2. U.S. Census Bureau — NAICS entry for 333992 (2022). https://www.census.gov/naics/?input=333992&year=2022
3. U.S. Census Bureau — The Census Bureau’s Implementation of the 2022 NAICS (2022 vintage and transition timeline). https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html
4. Acquisition.gov — DFARS PGI Part 208 (coordinated acquisition assignments referencing PSCs for welding equipment, e.g., 3431, 3432, 3433, 3436). https://www.acquisition.gov/dfarspgi/pgi-part-208-required-sources-supplies-and-services
5. U.S. Census Bureau — Economic Census by Industry (access to 2022 NAICS manufacturing tables). https://www.census.gov/programs-surveys/economic-census/data/tables/industry.html
6. U.S. Census Bureau — Nonemployer Statistics: Industry Reference Files (2022 NAICS Descriptions). https://www.census.gov/programs-surveys/nonemployer-statistics/technical-documentation/reference/naics-descriptions.html