335999 — All Other Miscellaneous Electrical Equipment and Component Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing industrial and commercial electric apparatus and other equipment (except lighting equipment, household appliances, transformers, motors, generators, switchgear, relays, industrial controls, batteries, communication and energy wire and cable, wiring devices, and carbon and graphite products). Examples of products made by these establishments are power converters (i.e., AC to DC and DC to AC), power supplies, surge suppressors, and similar equipment for industrial-type and consumer-type equipment.
Illustrative Examples
- Appliance cords made from purchased insulated wire
- Battery chargers, solid-state, manufacturing
- Door opening and closing devices, electrical, manufacturing
- Electric bells manufacturing
- Extension cords made from purchased insulated wire
- Inverters manufacturing
- Surge suppressers manufacturing
- Uninterruptible power supplies (UPS) manufacturing
Overview Facts
| NAICS Code | 335999 |
|---|---|
| Industry Title | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| SBA Size Standard | 600 employees |
| U.S. Establishments | 828 (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 3629 - Electrical Industrial Apparatus, NEC (via SIC1987:3629→NAICS1997:335999→2002:335999→2007:335999→2012:335999→2017:335999→2022:335999)
- SIC 3699 - Electrical Machinery Equipment, and Supplies, NEC (via SIC1987:3699→NAICS1997:335999→2002:335999→2007:335999→2012:335999→2017:335999→2022:335999)
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 5975 — Electrical Hardware and Supplies
- PSC 6105 — Motors, Electrical
- PSC 6110 — Electrical Control Equipment
- PSC 6115 — Generators and Generator Sets, Electrical
- PSC 6125 — Converters, Electrical, Rotating
- PSC 6130 — Converters, Electrical, Nonrotating
- PSC 6145 — Wire and Cable, Electrical
- PSC 6150 — Miscellaneous Electric Power and Distribution Equipment
- PSC 6210 — Indoor and Outdoor Electric Lighting Fixtures
- PSC 6220 — Electric Vehicular Lights and Fixtures
- PSC 6230 — Electric Portable and Hand Lighting Equipment
- PSC 6240 — Electric Lamps
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 335999:
- 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 335999 a valid 2022 NAICS code?
NAICS 335999 is 'All Other Miscellaneous Electrical Equipment and Component 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 335999?
The SBA small business size standard for NAICS 335999 is 600 employees (based on employees).
What is the legacy SIC code mapping for 335999?
NAICS code 335999 maps to the legacy 1987 SIC codes: 3629 - Electrical Industrial Apparatus, NEC, 3699 - Electrical Machinery Equipment, and Supplies, NEC.