NAICS 335999 - All Other Miscellaneous Electrical Equipment and Component Manufacturing
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What is NAICS 335999
NAICS code 335999 covers establishments primarily engaged in manufacturing a diverse range of industrial and commercial electrical equipment and components that do not fall into other specified electrical manufacturing categories. This includes products such as power converters (AC to DC and DC to AC), power supplies, surge suppressors, uninterruptible power supplies (UPS), and other specialized electrical apparatus. Businesses operating under this sector often serve industrial, commercial, and consumer markets by producing essential electrical equipment that supports energy management, power conversion, and electrical safety. Government agencies contract for these products to ensure reliable electrical infrastructure and energy systems across defense, public utilities, research facilities, and critical infrastructure sectors. The unique nature of these products often requires specialized manufacturing capabilities and compliance with rigorous quality and safety standards.
Industry Classification for NAICS 335999
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
Breakdown for NAICS 335999
- Encompasses manufacturing of specialized electrical equipment excluding common household or large-scale electrical products.
- Includes power conversion and surge protection devices essential for industrial and commercial applications.
- Businesses typically operate under small to medium-sized manufacturing standards with specialized technical expertise.
- Government contracts focus on ensuring electrical system reliability, safety, and energy efficiency.
- Products serve critical infrastructure, defense, and commercial markets requiring high-quality manufacturing standards.
Included Activities for NAICS 335999
- Manufacturing power converters that change AC to DC and vice versa.
- Producing surge suppressors to protect electrical systems from voltage spikes.
- Fabricating uninterruptible power supplies (UPS) for critical power backup.
- Assembling battery chargers using solid-state technology.
- Manufacturing extension and appliance cords from purchased insulated wire.
- Producing electric door opening and closing devices.
- Manufacturing electric bells and similar signaling devices.
- Fabricating inverters for industrial and consumer applications.
Business Types for NAICS 335999
- Specialized electrical equipment manufacturers
- Industrial component fabricators
- Commercial electrical apparatus producers
- Small to medium-sized manufacturing enterprises
- Defense subcontractors specializing in electrical systems
- Electrical equipment suppliers for government infrastructure projects
Subcategories for NAICS 335999
- Amplifiers, magnetic, pulse, and maser, manufacturing
- Appliance cords made from purchased insulated wire
- Atom smashers (i.e., particle accelerators) manufacturing
- Battery chargers, solid-state, manufacturing
- Bells, electric, manufacturing
- Betatrons manufacturing
- Capacitors (except electronic), fixed and variable, manufacturing
- Cathodic protection equipment manufacturing
- Chimes, electric, manufacturing
- Cleaning equipment, ultrasonic (except dental, medical), manufacturing
- Condensers (except electronic), fixed and variable, manufacturing
- Cyclotrons manufacturing
- Door opening and closing devices, electrical, manufacturing
- Electric bells manufacturing
- Electric fence chargers manufacturing
- Electrochemical generators (i.e., fuel cells) manufacturing
- Electron linear accelerators manufacturing
- Electrostatic particle accelerators manufacturing
- Extension cords made from purchased insulated wire
- Fuel cells, electrochemical generators, manufacturing
- Garage door openers manufacturing
- Gongs, electric, manufacturing
- Inverters, solid-state, manufacturing
- Linear accelerators manufacturing
- Maser (i.e., microwave amplification by stimulated emission of radiation) amplifiers manufacturing
- Mercury arc rectifiers (i.e., electrical apparatus) manufacturing
- Particle accelerators, high-voltage, manufacturing
- Photovoltaic panels made from purchased cells
- Power converter units (i.e., AC to DC), static, manufacturing
- Power supplies, regulated and unregulated, manufacturing
- Rectifiers (except electronic component-type, semiconductor) manufacturing
- Semiconductor battery chargers manufacturing
- Semiconductor high-voltage power supplies manufacturing
- Series capacitors (except electronic) manufacturing
- Surge suppressors manufacturing
- Thermoelectric generators manufacturing
- Ultrasonic cleaning equipment (except dental, medical) manufacturing
- Ultrasonic generators sold separately for inclusion in tools and equipment manufacturing
- Uninterruptible power supplies (UPS) manufacturing
- UPS (uninterruptible power supplies) manufacturing
Government Buyers for NAICS 335999
Federal, state, and local government agencies frequently procure products covered under NAICS 335999 for use in military installations, public safety communications, energy grids, research laboratories, and infrastructure projects. Agencies like the Department of Defense, Department of Energy, and the General Services Administration require these specialized electrical components to maintain and upgrade power management systems, ensure uninterrupted power supplies in critical operations, and enhance electrical safety. The government’s focus on energy efficiency, modernization of electrical infrastructure, and disaster resilience drives demand for advanced power conversion and surge suppression equipment.
Contract Types & Procurement for NAICS 335999
Contracts in this sector typically include fixed-price, indefinite-delivery/indefinite-quantity (IDIQ), and firm-fixed-price agreements, often awarded through competitive bidding or negotiated procurement methods. Smaller purchases might use simplified acquisition procedures, while larger or more complex orders for customized equipment may involve multiple-year contracts or blanket purchase agreements. Contract values vary widely depending on the complexity and volume of the products, ranging from tens of thousands to multimillion-dollar procurements, especially when equipment supports large-scale infrastructure or defense projects.
Details for NAICS 335999
Explore the hierarchy and related codes for this industry
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