Description
Maintenance, Repair and Rebuilding of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
334290 – Other Communications Equipment Manufacturing
236220 – Commercial and Institutional Building Construction
561790 – Other Services to Buildings and Dwellings
811412 – Appliance Repair and Maintenance
238210 – Electrical Contractors and Other Wiring Installation Contractors
811210 – Electronic and Precision Equipment Repair and Maintenance

Description
Maintenance, Repair and Rebuilding of Equipment: Plumbing, Heating, and Waste Disposal Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
236220 – Commercial and Institutional Building Construction
237110 – Water and Sewer Line and Related Structures Construction
334290 – Other Communications Equipment Manufacturing
561790 – Other Services to Buildings and Dwellings

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

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238160 – Roofing Contractors
238990 – All Other Specialty Trade Contractors
561210 – Facilities Support Services
238320 – Painting and Wall Covering Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
238290 – Other Building Equipment Contractors
238110 – Poured Concrete Foundation and Structure Contractors
237310 – Highway, Street, and Bridge Construction

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238160 – Roofing Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
238990 – All Other Specialty Trade Contractors
238320 – Painting and Wall Covering Contractors
238330 – Flooring Contractors

Description
Installation of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
236220 – Commercial and Institutional Building Construction
238210 – Electrical Contractors and Other Wiring Installation Contractors
811412 – Appliance Repair and Maintenance
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238990 – All Other Specialty Trade Contractors
423730 – Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

Includes
Store Type Units; Window and Room Type Units; Marine, and Vehicular Air Conditioning Units; Air Conditioning Plants and Systems.

Excludes
Air Conditioning Components (FSC 4130, or as otherwise specifically prescribed by the indexes and structure of the FSC).

Notes
This class includes only complete air conditioning equipment, systems, and plants. Also included are specially designed nonoperating accessories such as a window panel used with a window type air conditioning unit to facilitate mounting. Excluded from this class are operating components, assemblies, parts, attachments, or accessories for use in or on air conditioning equipment, which are to be classified in FSC 4130, or as otherwise specifically prescribed by the indexes and structure of the FSC.

Possible NAICS Codes
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
238220 – Plumbing, Heating, and Air-Conditioning Contractors
335220 – Major Household Appliance Manufacturing
333413 – Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
333912 – Air and Gas Compressor Manufacturing
334290 – Other Communications Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332510 – Hardware Manufacturing
423730 – Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
221330 – Steam and Air-Conditioning Supply

Description
Installation of Equipment: Plumbing, Heating, and Waste Disposal Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
236220 – Commercial and Institutional Building Construction
237110 – Water and Sewer Line and Related Structures Construction
561210 – Facilities Support Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
333414 – Heating Equipment (except Warm Air Furnaces) Manufacturing
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
423730 – Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
236210 – Industrial Building Construction
221310 – Water Supply and Irrigation Systems

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
238990 – All Other Specialty Trade Contractors
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
238160 – Roofing Contractors
236210 – Industrial Building Construction
238330 – Flooring Contractors
238320 – Painting and Wall Covering Contractors

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
238160 – Roofing Contractors
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238320 – Painting and Wall Covering Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
238990 – All Other Specialty Trade Contractors
238290 – Other Building Equipment Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
237990 – Other Heavy and Civil Engineering Construction

Description
Maintenance, Repair and Rebuilding of Equipment: Pumps and Compressors

Possible NAICS Codes
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238220 – Plumbing, Heating, and Air-Conditioning Contractors
333912 – Air and Gas Compressor Manufacturing
561210 – Facilities Support Services
221310 – Water Supply and Irrigation Systems
333914 – Measuring, Dispensing, and Other Pumping Equipment Manufacturing
237110 – Water and Sewer Line and Related Structures Construction
811210 – Electronic and Precision Equipment Repair and Maintenance
541330 – Engineering Services
336611 – Ship Building and Repairing

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
238290 – Other Building Equipment Contractors
562910 – Remediation Services
238160 – Roofing Contractors
238990 – All Other Specialty Trade Contractors

Includes
Bathtubs; Commodes; Lavatories; Shower Cabinets; Sinks; Water Closets; Accessories and Component Parts, such as Dispensers, Faucets, Holders, Racks, Shower Heads, Flush Valves and Stop Valves.

Excludes
Fittings and Specialties for Hose, Pipe and Tube (FSC 4730).

Possible NAICS Codes
332919 – Other Metal Valve and Pipe Fitting Manufacturing
423710 – Hardware Merchant Wholesalers
332913 – Plumbing Fixture Fitting and Trim Manufacturing
326191 – Plastics Plumbing Fixture Manufacturing
332510 – Hardware Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
238220 – Plumbing, Heating, and Air-Conditioning Contractors
423720 – Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561210 – Facilities Support Services
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
236220 – Commercial and Institutional Building Construction
333414 – Heating Equipment (except Warm Air Furnaces) Manufacturing
334290 – Other Communications Equipment Manufacturing
332410 – Power Boiler and Heat Exchanger Manufacturing
561990 – All Other Support Services
238210 – Electrical Contractors and Other Wiring Installation Contractors

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238290 – Other Building Equipment Contractors
561210 – Facilities Support Services
562910 – Remediation Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
238160 – Roofing Contractors
238190 – Other Foundation, Structure, and Building Exterior Contractors