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The following Product Service Codes (PSCs) are commonly associated with NAICS 423730, Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

PSC 4120 Air Conditioning Equipment

Top Result Products
Federal Category 4.3: Facilities & Construction — Facility Related Materials

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
332510 – Hardware Manufacturing
423730 – Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
221330 – Steam and Air-Conditioning Supply

PSC 4520 Space and Water Heating Equipment

Products
Federal Category 4.3: Facilities & Construction — Facility Related Materials

PSC 4130 Refrigeration and Air Conditioning Components

Products
Federal Category 4.3: Facilities & Construction — Facility Related Materials

Includes
Heat Exchanger Equipment; Refrigerant Strainers; Refrigeration Compressors; Air Conditioning and Refrigeration Servicing Equipment, such as Charging and Testing Manifolds, Lines and Units; Operating Components of Refrigeration and Air Conditioning Equipment, Plants, and Systems classified in classes 4110 and 4120.

Excludes
Refrigeration and Air Conditioning Plants (see classes 4110 and 4120): Collections of Refrigeration Components "packaged" as a unit including a refrigeration compressor, condenser, evaporator, etc., specifically designed and tailored for applications such as walk-in type refrigerators. Individual components of the "packaged" unit will be classified in class 4130, or as otherwise specifically prescribed by the indexes and structure of the FSC. The complete "package" unit will be classified in class 4110.

Possible NAICS Codes
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
333120 – Construction Machinery Manufacturing
332112 – Nonferrous Forging
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
221330 – Steam and Air-Conditioning Supply
336211 – Motor Vehicle Body Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333241 – Food Product Machinery Manufacturing
333413 – Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing

PSC 4140 Fans, Air Circulators, and Blower Equipment

Products
Federal Category 4.3: Facilities & Construction — Facility Related Materials

Includes
Wall Type Fans; Pedestal Type Fans; Household Type and Attic Type Exhaust Fans; Floor Fans; Forced Draft Exhaust and Disposal Kits; Fans; Air Circulators, and Blower Equipment, whether designated as "industrial" or "nonindustrial" by application and/or use.

Excludes
Combination Heater-Fans (see FSC 4520).

Notes
Fans and impellers which are specifically designed for use with specific individual types of equipment are to be classified in the same classes as their next higher assemblies or in the appropriate components or accessories classes (as in group 25 or 29 or class 1680) as prescribed by the indexes and structure of the FSC.

Possible NAICS Codes
333413 – Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
333414 – Heating Equipment (except Warm Air Furnaces) Manufacturing
333120 – Construction Machinery Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
332510 – Hardware Manufacturing

PSC J072 Maint/Repair/Rebuild of Equipment—Household and Commercial Furnishings and Appliances

Services
Federal Category 6.3: Office Management — Furniture

PSC 4820 Valves, Nonpowered

Products
Federal Category 5.1: Industrial Products & Services — Machinery & Components

PSC 4460 Air Purification Equipment

Products
Federal Category 4.3: Facilities & Construction — Facility Related Materials