Includes
Circuit Breakers and Cutouts.

Excludes
Relays.

Possible NAICS Codes
335313 – Switchgear and Switchboard Apparatus Manufacturing
221118 – Other Electric Power Generation
444180 – Other Building Material Dealers
333618 – Other Engine Equipment Manufacturing
333120 – Construction Machinery Manufacturing
333992 – Welding and Soldering Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing

Description
Electric Services

Possible NAICS Codes
221122 – Electric Power Distribution
221112 – Fossil Fuel Electric Power Generation
221118 – Other Electric Power Generation
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
221210 – Natural Gas Distribution
221121 – Electric Bulk Power Transmission and Control
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities
238210 – Electrical Contractors and Other Wiring Installation Contractors

Description
Gas Services

Possible NAICS Codes
221210 – Natural Gas Distribution
211130 – Natural Gas Extraction
221122 – Electric Power Distribution
221118 – Other Electric Power Generation
221112 – Fossil Fuel Electric Power Generation
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities

Includes
Engine, Turbine, Wind, and Hand Driven Generator Sets and Auxiliary Aircraft Generators.

Excludes
Motor-Converters: Motor-Generator Sets; Engine Generators; Engine Accessory Generators.

Possible NAICS Codes
335312 – Motor and Generator Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332991 – Ball and Roller Bearing Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing

Includes
Appliance and Extension Cords; Electric Power and Distribution Cable with Attachments, Multiapplication; Common Components of Electrical Rotating Equipment, such as End Bells and Frames.

Possible NAICS Codes
334419 – Other Electronic Component Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
335139 – Electric Lamp Bulb and Other Lighting Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
332510 – Hardware Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336411 – Aircraft Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing

Description
Other Utilities

Possible NAICS Codes
221320 – Sewage Treatment Facilities
517111 – Wired Telecommunications Carriers
221310 – Water Supply and Irrigation Systems
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities
221122 – Electric Power Distribution
221210 – Natural Gas Distribution
516210 – Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers
561210 – Facilities Support Services
562111 – Solid Waste Collection
221112 – Fossil Fuel Electric Power Generation

Description
Maintenance, Repair and Rebuilding of Equipment: Electric Wire, and Power and Distribution Equipment

Possible NAICS Codes
811210 – Electronic and Precision Equipment Repair and Maintenance
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238210 – Electrical Contractors and Other Wiring Installation Contractors
561210 – Facilities Support Services
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
541519 – Other Computer Related Services

Description
Maintenance, Repair and Rebuilding of Equipment: Mechanical Power Transmission Equipment

Possible NAICS Codes
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
811210 – Electronic and Precision Equipment Repair and Maintenance
336611 – Ship Building and Repairing
238210 – Electrical Contractors and Other Wiring Installation Contractors
488190 – Other Support Activities for Air Transportation
335312 – Motor and Generator Manufacturing
238290 – Other Building Equipment Contractors
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
335311 – Power, Distribution, and Specialty Transformer Manufacturing

Includes
Light Burner Fuels; Diesel Fuels, Kerosene; Military Specification Type Residuals; Special and Heavy Grade Turbine Vessel Propulsion Fuels; Federal Specification Heavy Burner Fuels; Bunker "C" Commercial Grade Fuel; Heavy Fuel and other Black (Boiler Type) Fuels; Illuminating Oils.

Possible NAICS Codes
324110 – Petroleum Refineries
457210 – Fuel Dealers
324191 – Petroleum Lubricating Oil and Grease Manufacturing
324199 – All Other Petroleum and Coal Products Manufacturing
213112 – Support Activities for Oil and Gas Operations
424720 – Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals)
333132 – Oil and Gas Field Machinery and Equipment Manufacturing

Excludes
Potential and Current Transformers.

Notes
This class includes transformers with a kilovolt-ampere rating above 1 kva.

Possible NAICS Codes
335311 – Power, Distribution, and Specialty Transformer Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334416 – Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing
541519 – Other Computer Related Services
335312 – Motor and Generator Manufacturing
334412 – Bare Printed Circuit Board Manufacturing
221122 – Electric Power Distribution

Description
Maintenance, Repair and Rebuilding of Equipment: Electrical and Electronic Equipment Components

Possible NAICS Codes
811210 – Electronic and Precision Equipment Repair and Maintenance
541330 – Engineering Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
238290 – Other Building Equipment Contractors
561210 – Facilities Support Services
541519 – Other Computer Related Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
541512 – Computer Systems Design Services

Possible NAICS Codes
561210 – Facilities Support Services
236220 – Commercial and Institutional Building Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238290 – Other Building Equipment Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238320 – Painting and Wall Covering Contractors
236210 – Industrial Building Construction
541690 – Other Scientific and Technical Consulting Services

Includes
Shafts and Shafting; Collars; Gearshafts; Ball Joints; Actuating Cylinders.

Possible NAICS Codes
333613 – Mechanical Power Transmission Equipment Manufacturing
336411 – Aircraft Manufacturing
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332510 – Hardware Manufacturing
336350 – Motor Vehicle Transmission and Power Train Parts Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing

Description
Water Services

Possible NAICS Codes
221310 – Water Supply and Irrigation Systems
221320 – Sewage Treatment Facilities
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities
488390 – Other Support Activities for Water Transportation
237110 – Water and Sewer Line and Related Structures Construction
221210 – Natural Gas Distribution

Description
Installation of Equipment: Electrical and Electronic Equipment Components

Possible NAICS Codes
238210 – Electrical Contractors and Other Wiring Installation Contractors
541330 – Engineering Services
541512 – Computer Systems Design Services
541519 – Other Computer Related Services
334290 – Other Communications Equipment Manufacturing
236220 – Commercial and Institutional Building Construction
237130 – Power and Communication Line and Related Structures Construction
517111 – Wired Telecommunications Carriers