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The following Product Service Codes (PSCs) are commonly associated with NAICS 332410, Power Boiler and Heat Exchanger Manufacturing

PSC 4470 Nuclear Reactors

Products
Federal Category 11.3: Aircraft, Ships/Submarines & Land Vehicles — Ships & Submarines

Includes
Refueling Machines; Ion Chamber Seals; Thermal Barriers; Control Rods; Steam Generators, Pressurized Water; Reactor Vessel Shells; Handling Carts, Hoisting Units, New and Spent Cartridges.

Notes
This class includes all types of nuclear reactors and those items which are specifically designed for use within nuclear reactors, their primary cooling systems, auxiliary fluid systems, special propulsion plant systems, handling and servicing equipment, electrical and control systems, and associated special test and water chemistry control items. Excluded from this class are those items for which more specific classifications are suitable.

Possible NAICS Codes
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332410 – Power Boiler and Heat Exchanger Manufacturing
332919 – Other Metal Valve and Pipe Fitting Manufacturing
339999 – All Other Miscellaneous Manufacturing
334290 – Other Communications Equipment Manufacturing

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
332112 – Nonferrous Forging
333120 – Construction Machinery Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
221330 – Steam and Air-Conditioning Supply
333413 – Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
336211 – Motor Vehicle Body Manufacturing
238220 – Plumbing, Heating, and Air-Conditioning Contractors
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing

PSC 4120 Air Conditioning Equipment

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
423730 – Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
334290 – Other Communications Equipment Manufacturing
333413 – Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
221330 – Steam and Air-Conditioning Supply
444140 – Hardware Retailers
333912 – Air and Gas Compressor Manufacturing
332510 – Hardware Manufacturing

PSC 4510 Plumbing Fixtures and Accessories

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

PSC 5342 Hardware, Weapon System

Products
Federal Category 14.4: Sustainment S&E — Supply Parts