335931 — Current-Carrying Wiring Device Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing current-carrying wiring devices.
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
| NAICS Code | 335931 |
|---|---|
| Industry Title | Current-Carrying Wiring Device Manufacturing |
| SBA Size Standard | 600 employees |
| U.S. Establishments | 397 (Census CBP, 2023) |
| IRS PBA Code | 335900 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 335 → 3359 |
| Source / Verified | US Census 2022 NAICS Manual, Census CBP / 2026-06-28 |
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)
Related Resources & Compliance Guides
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.
- 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.
Related Industries in 3359
Frequently Asked Questions (FAQ)
Is 335931 a valid 2022 NAICS code?
NAICS 335931 is 'Current-Carrying Wiring Device Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 600 employees.
What is the SBA size standard for NAICS 335931?
The SBA small business size standard for NAICS 335931 is 600 employees (based on employees).
What is the legacy SIC code mapping for 335931?
NAICS code 335931 maps to the legacy 1987 SIC codes: 3643 - Current-Carrying Wiring Devices.