423810 — Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers
Description
This industry comprises establishments primarily engaged in the merchant wholesale distribution of specialized machinery, equipment, and related parts generally used in construction, mining (except oil well), and logging activities (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Illustrative Examples
- Excavating machinery and equipment merchant wholesalers
- Road construction and maintenance machinery merchant wholesalers
- Forestry machinery and equipment merchant wholesalers
- Scaffolding merchant wholesalers
- Mining cranes merchant wholesalers
Exclusions & Cross-References
- Establishments primarily engaged in the merchant wholesale distribution of oil well machinery and equipment are
- classified in Industry 423830, Industrial Machinery and Equipment Merchant Wholesalers.
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 5082 - Construction and Mining (via SIC1987:5082→NAICS1997:42181→2002:423810→2007:423810→2012:423810→2017:423810→2022:423810)
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 L041 — Technical Representation Services: Refrigeration, Air Conditioning, and Air Circulating Equipment
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 423810 valid in 2022? ▾
Yes, 423810 is a valid 6-digit 2022 NAICS national industry code representing 'Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers' under Sector 42 in the official classification index.
What is the SBA size standard for NAICS code 423810? ▾
The Small Business Administration (SBA) has established a small business size standard of 250 employees for NAICS code 423810 (Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers), calculated based on employees.
What is the legacy SIC equivalent for NAICS 423810? ▾
According to official Census Bureau concordance tables, NAICS code 423810 (Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 5082 - Construction and Mining.
Related Pages & Tools
Further regulatory reference links for NAICS code 423810:
- Sector 42 Directory Hub — List of related industries in the Wholesale Trade sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 423810 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers).
- 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.