Includes
Dimensional Lumber; Wood Flooring; Mine Timbers; Poles; Railroad Ties; Wood Siding; Molding; Stakes.

Excludes
Millwork (FSC 5520); Plywood and Veneer (FSC 5530); Prefabricated Non-Wood Items (FSC 5670).

Possible NAICS Codes
321212 – Softwood Veneer and Plywood Manufacturing
321912 – Cut Stock, Resawing Lumber, and Planing
321113 – Sawmills
321211 – Hardwood Veneer and Plywood Manufacturing
321215 – Engineered Wood Member Manufacturing
321999 – All Other Miscellaneous Wood Product Manufacturing
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
321920 – Wood Container and Pallet Manufacturing
321114 – Wood Preservation
561720 – Janitorial Services

Includes
Leaf Type Vehicular Springs; Suspension Type Shock Absorbers.

Excludes
Vehicular Hardware (FSG 53); Specialized Vehicular Furniture (FSC 2540).

Possible NAICS Codes
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336211 – Motor Vehicle Body Manufacturing
333618 – Other Engine Equipment Manufacturing
332510 – Hardware Manufacturing
333120 – Construction Machinery Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing
336370 – Motor Vehicle Metal Stamping
336360 – Motor Vehicle Seating and Interior Trim Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Includes
Bleachers; Grandstands.

Possible NAICS Codes
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
332311 – Prefabricated Metal Building and Component Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
236220 – Commercial and Institutional Building Construction

Includes
Special Bridge Erection Equipment; Bridge Floats and Pontoons; Tramways; Trestles.

Excludes
Pontoons and Floating Docks (FSC 1945).

Possible NAICS Codes
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332312 – Fabricated Structural Metal Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
321999 – All Other Miscellaneous Wood Product Manufacturing
326199 – All Other Plastics Product Manufacturing
332313 – Plate Work Manufacturing
321215 – Engineered Wood Member Manufacturing
314999 – All Other Miscellaneous Textile Product Mills
237310 – Highway, Street, and Bridge Construction

Includes
Nonwood Dimensional Lumber; Flooring; Special Turning and Carvings; Nonwood Veneer.

Excludes
Millwork and Wood Veneer (FSC's 5520 and 5530); Items specified as Wooden (FSC 5510).

Possible NAICS Codes
336611 – Ship Building and Repairing
326199 – All Other Plastics Product Manufacturing
332312 – Fabricated Structural Metal Manufacturing
326299 – All Other Rubber Product Manufacturing
321212 – Softwood Veneer and Plywood Manufacturing
238330 – Flooring Contractors
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
321999 – All Other Miscellaneous Wood Product Manufacturing
332321 – Metal Window and Door Manufacturing
321215 – Engineered Wood Member Manufacturing

Includes
Power Transmission Towers; Radar Towers; Searchlight Towers; Control Towers; Prefabricated Tower Components, such as Anchor Rails, Tie Rods, Braces, Steps, Guy Assemblies; Specialized Tower Hardware.

Possible NAICS Codes
332312 – Fabricated Structural Metal Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
237130 – Power and Communication Line and Related Structures Construction
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
335139 – Electric Lamp Bulb and Other Lighting Equipment Manufacturing
326199 – All Other Plastics Product Manufacturing
541512 – Computer Systems Design Services
321215 – Engineered Wood Member Manufacturing
238190 – Other Foundation, Structure, and Building Exterior Contractors
423690 – Other Electronic Parts and Equipment Merchant Wholesalers

Includes
Conduit; Raceways; Face Plates; Condulets; Outlet and Junction Boxes; Pole Line Hardware, not elsewhere classifiable.

Possible NAICS Codes
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
335932 – Noncurrent-Carrying Wiring Device Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
327110 – Pottery, Ceramics, and Plumbing Fixture Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
332710 – Machine Shops
332510 – Hardware Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing

Includes
Roofing (all materials), including Sheet Metal; Roofing Felt; Roll Roofing; Roofing Tile; Shingles.

Excludes
Tar Paper; Bulk Sheet Metal Roofing and Siding; Wood Siding.

Possible NAICS Codes
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
238160 – Roofing Contractors
321113 – Sawmills
236220 – Commercial and Institutional Building Construction
423330 – Roofing, Siding, and Insulation Material Merchant Wholesalers
324122 – Asphalt Shingle and Coating Materials Manufacturing

Excludes
Load Chain; Chain and Metal Rope Fittings; Wire Rope; Hoists; Ship Rigging.

Possible NAICS Codes
333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
339999 – All Other Miscellaneous Manufacturing
332618 – Other Fabricated Wire Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
314994 – Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills
488190 – Other Support Activities for Air Transportation
336211 – Motor Vehicle Body Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Possible NAICS Codes
541620 – Environmental Consulting Services
541611 – Administrative Management and General Management Consulting Services
624230 – Emergency and Other Relief Services
562910 – Remediation Services
611710 – Educational Support Services
488119 – Other Airport Operations
541990 – All Other Professional, Scientific, and Technical Services
115310 – Support Activities for Forestry
541330 – Engineering Services
541614 – Process, Physical Distribution, and Logistics Consulting Services

Description
Engineering and Technical Services

Includes
Includes: System Engineering, Technical Assistance and Other Services Used to Support the Program Office During the Acquisition Cycle

Excludes
Excludes: Language Translation and Sign Language Interpretation (PSC R608)

Possible NAICS Codes
541330 – Engineering Services
541990 – All Other Professional, Scientific, and Technical Services
541512 – Computer Systems Design Services
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541690 – Other Scientific and Technical Consulting Services
541620 – Environmental Consulting Services
541611 – Administrative Management and General Management Consulting Services
541519 – Other Computer Related Services
336611 – Ship Building and Repairing
541511 – Custom Computer Programming Services

Includes
Warming and/or Chilling Tables, Stationary and Portable; Serving Carts; Field and Mobile Baking Ovens; Toasters; Waffle Irons; Grills; Special Aircraft, Marine, and Railway Type Food Cooking Equipment; Utensils with Integral Heating Units; Cafeteria Type Display Cases and Showcases; Soda Fountains; Milk, Soda, and/or Ice Cream Dispensers; Cold Food Counters; Combination Heated-Refrigerated Food Serving Equipment; Carbonators; and other types of refrigerated food serving and display equipment commonly used in cafeterias, mess hall kitchens, and the like.

Excludes
Carts other than Serving; Commissary or Food Store Type Refrigeration Equipment; Commercial Household, or Professional and Scientific Refrigerators; Drinking Fountains; (see class 4110 for items excluded from class 7310).

Notes
This class includes warming and/ or chilling equipment used for the display and serving of food.

Possible NAICS Codes
333241 – Food Product Machinery Manufacturing
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
325211 – Plastics Material and Resin Manufacturing
322230 – Stationery Product Manufacturing
332215 – Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing
337215 – Showcase, Partition, Shelving, and Locker Manufacturing

Includes
Expanded Metal Lath; Airplane Landing Mats; Traction Mats.

Possible NAICS Codes
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
339999 – All Other Miscellaneous Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

Includes
Door Frames; Window Frames; Window Sashes; Eave Troughs (gutters); Gratings; Grilles, Shutters; Fixed Fire Escapes; Mounted Partitions.

Excludes
Plumbing and Associated Components such as Sinks; Wallboard and Items Classified as Furniture.

Notes
Items specified as Wooden are classified in FSC 5520.

Possible NAICS Codes
326122 – Plastics Pipe and Pipe Fitting Manufacturing
444180 – Other Building Material Dealers
332321 – Metal Window and Door Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
321992 – Prefabricated Wood Building Manufacturing
238290 – Other Building Equipment Contractors
236220 – Commercial and Institutional Building Construction
332312 – Fabricated Structural Metal Manufacturing

Includes
Door Frames; Doors; Window Frames; Window Sashes.

Excludes
Molding (FSC 5510); Prefabricated Non-Wood Items (FSC 5670).

Possible NAICS Codes
332321 – Metal Window and Door Manufacturing
321911 – Wood Window and Door Manufacturing
337212 – Custom Architectural Woodwork and Millwork Manufacturing
321212 – Softwood Veneer and Plywood Manufacturing
332710 – Machine Shops
321999 – All Other Miscellaneous Wood Product Manufacturing
238290 – Other Building Equipment Contractors
444140 – Hardware Retailers
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
321113 – Sawmills