NAICS 423830

Overview

The North American Industry Classification System (NAICS) is the OMB-adopted standard used by U.S. statistical agencies to classify business establishments for collecting, analyzing, and publishing economic data. NAICS replaced SIC in 1997 and was jointly developed with Statistics Canada and Mexico’s INEGI to ensure comparability across North America. The current U.S. vintage is 2022. ¹

NAICS 423830 covers establishments primarily engaged in the merchant wholesale distribution of specialized machinery, equipment, and related parts generally used in manufacturing, oil-well, and warehousing activities. Examples include metalworking and material handling equipment, food processing machinery, and fluid power components. It is part of Industry Group 4238, “Machinery, Equipment, and Supplies Merchant Wholesalers.” ²

See also on G2X:

• G2X — NAICS 423830 overview: https://app.g2xchange.com/naics/423830
• Related code: NAICS 423810
• Related code: NAICS 423840

What this NAICS covers

• Distribution of industrial metalworking machinery and equipment (e.g., lathes, milling machines). ²
• Distribution of material handling machinery and equipment used in warehouses and plants. ²
• Distribution of food products processing machinery and equipment. ²
• Distribution of oil-well machinery and equipment. ²
• Distribution of fluid power (hydraulic and pneumatic) pumps, motors, pistons, and valves. ²
• Distribution of related parts and components for industrial machinery noted above. ²

Related NAICS and PSC codes

• NAICS descriptors reflect Census NAICS United States documentation. ²
• PSC descriptors reflect the GSA Product and Service Code (PSC) Manual. ³

Scope notes and cross-references

• Construction, mining (except oil well), and logging machinery distribution is classified under NAICS 423810, not NAICS 423830. ²
• Distribution of supplies used with industrial machinery (e.g., welding supplies, refractory materials) falls under NAICS 423840. ²
• Oil-well machinery and equipment distribution is explicitly included in NAICS 423830. ²

Illustrative products distributed under 423830

• Metalworking machinery and equipment. ²
• Material handling machinery and equipment. ²
• Food processing machinery and equipment. ²
• Oil-well machinery and equipment. ²
• Fluid power transmission equipment (hydraulic and pneumatic). ²

Frequently asked questions

• What activities are included in NAICS 423830?

  • Establishments that primarily wholesale specialized industrial machinery, equipment, and related parts used in manufacturing, oil-well, and warehousing activities. This includes metalworking, food processing, material handling, and fluid power equipment. ²

• How does NAICS 423830 differ from NAICS 423840?

  • 423830 covers wholesaling of machinery and equipment; 423840 covers wholesaling of supplies used with such machinery (e.g., industrial containers, welding supplies except gases). The NAICS manual separates equipment wholesalers from supplies wholesalers. ²

• Are oil-field equipment wholesalers included in 423830?

  • Yes. Oil-well machinery and equipment merchant wholesalers are specifically listed within 423830. Construction and mining (except oil well) machinery belongs in NAICS 423810. ²

• Which PSC codes commonly align with 423830 equipment buys?

  • Depending on the item, agencies may use PSC Group 34 (e.g., 3405 Saws and Filing Machines) or Group 36 (e.g., 3605 Food Products Machinery and Equipment) for product classification on solicitations and awards. ³

Useful resources

• G2X — NAICS 423830: https://app.g2xchange.com/naics/423830
• Census NAICS — Introduction and search portal (current vintage includes 2022). ¹
• NAICS United States — 423830 (2022) definition, examples, and cross-references. ²
• 2022 NAICS Sector 42 (Wholesale Trade) — Economic Census resources and tables. ⁴

References

1. U.S. Census Bureau. North American Industry Classification System (NAICS). https://www.census.gov/naics/
2. U.S. Census Bureau. NAICS Search — 423830 (2022). https://www.census.gov/naics/?input=423830&year=2022
3. U.S. General Services Administration (Acquisition.gov). Product and Service Code (PSC) Manual — April 2025 (PDF). https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf
4. U.S. Census Bureau. 2022 NAICS Sector 42 — Wholesale Trade (Economic Census resources). https://www.census.gov/data/tables/2022/econ/economic-census/naics-sector-42.html