335931 — Current-Carrying Wiring Device Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing current-carrying wiring devices (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Illustrative Examples
- Bus bars, electrical conductors (except switchgear-type), manufacturing
- GFCI (ground fault circuit interrupters) manufacturing
- Lamp holders manufacturing
- Lightning arrestors and coils manufacturing
- Receptacles (i.e., outlets), electrical, manufacturing
- Switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler) manufacturing
Exclusions & Cross-References
- Manufacturing electronic component-type connectors--are classified in U.S. Industry 334417, Electronic
- Connector Manufacturing;
- MANUFACTURING 279
- Manufacturing noncurrent-carrying wiring devices--are classified in U.S. Industry 335932, Noncurrent-
- Carrying Wiring Device Manufacturing; and
- Manufacturing electronic component-type sockets and switches--are classified in U.S. Industry 334419,
- Other Electronic Component 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 3643 - Current-Carrying Wiring Devices (via SIC1987:3643→NAICS1997:335931→2002:335931→2007:335931→2012:335931→2017:335931→2022:335931)
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 5920 — Fuses, Arresters, Absorbers, and Protectors
- PSC 5935 — Connectors, Electrical
- PSC 5940 — Lugs, Terminals, and Terminal Strips
- PSC 5975 — Electrical Hardware and Supplies
- PSC 5995 — Cable, Cord, and Wire Assemblies: Communication Equipment
- PSC 6145 — Wire and Cable, Electrical
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 335931 valid in 2022? ▾
Yes, 335931 is a valid 6-digit 2022 NAICS national industry code representing 'Current-Carrying Wiring Device Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 335931? ▾
The Small Business Administration (SBA) has established a small business size standard of 600 employees for NAICS code 335931 (Current-Carrying Wiring Device Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 335931? ▾
According to official Census Bureau concordance tables, NAICS code 335931 (Current-Carrying Wiring Device Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3643 - Current-Carrying Wiring Devices.
Related Pages & Tools
Further regulatory reference links for NAICS code 335931:
- 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 335931 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Current-Carrying Wiring Device 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.