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
321211 – Hardwood Veneer and Plywood Manufacturing
321113 – Sawmills
321215 – Engineered Wood Member Manufacturing
321912 – Cut Stock, Resawing Lumber, and Planing
321999 – All Other Miscellaneous Wood Product Manufacturing
339920 – Sporting and Athletic Goods Manufacturing
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
321920 – Wood Container and Pallet Manufacturing
321114 – Wood Preservation

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
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333120 – Construction Machinery Manufacturing
332510 – Hardware Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing
336370 – Motor Vehicle Metal Stamping
336360 – Motor Vehicle Seating and Interior Trim Manufacturing
336330 – Motor Vehicle Steering and Suspension Components (except Spring) 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
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
332312 – Fabricated Structural Metal Manufacturing

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
332311 – Prefabricated Metal Building and Component Manufacturing
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
321212 – Softwood Veneer and Plywood Manufacturing
326299 – All Other Rubber Product Manufacturing
332312 – Fabricated Structural Metal Manufacturing
321999 – All Other Miscellaneous Wood Product Manufacturing
238330 – Flooring Contractors
314110 – Carpet and Rug Mills
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
321215 – Engineered Wood Member 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
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
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
332991 – Ball and Roller Bearing Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
333613 – Mechanical Power Transmission Equipment Manufacturing

Includes
All Engine Instruments, including Aircraft, Marine, and Vehicular; Fuel Pressure Gages; Manifold Pressure Gages; Oil Pressure Gages; Fuel Mixture Indicators; Engine Oil and Fuel Warning Devices.

Notes
Instruments designed for use on both engines and other than engines are not included in this class and should be classified in the appropriate instruments class of group 66.

Possible NAICS Codes
333618 – Other Engine Equipment Manufacturing
334519 – Other Measuring and Controlling Device Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
335312 – Motor and Generator Manufacturing
334515 – Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
334514 – Totalizing Fluid Meter and Counting Device Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
332510 – Hardware Manufacturing

Includes
Automotive, Industrial, Marine, Locomotive, and all other types of Diesel and Semi-Diesel Engines.

Excludes
Engines Accessories (FSC 2990).

Possible NAICS Codes
333618 – Other Engine Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333120 – Construction Machinery Manufacturing

Includes
Engine Dynafocal Suspension Mounts; Engine Cowling Mounts; Engine Mounted Control Assemblies; Pneumatic Starters; Push-Pull Control Assemblies; Specially designed Jet Engine Air, Oil, Anti-icing and Hydraulic Regulators; Valves and Pumps; Starting Units.

Excludes
Exhaust System; (FSC 1560); Jet Engine Hydraulic Reservoirs (FSC 2840); Jet Engine Oil Tanks (FSC 2840); Electrical Starters (FSC 2925); Cockpit Mounted Control Quadrants (FSC 1680); Aircraft Engine Covers (FSC 1730).

Notes
Items classified in this class must be specifically designed for use with aircraft or guided missile prime-movers only.

Possible NAICS Codes
336412 – Aircraft Engine and Engine Parts Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
332510 – Hardware Manufacturing
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
488190 – Other Support Activities for Air Transportation
332722 – Bolt, Nut, Screw, Rivet, and Washer 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
237130 – Power and Communication Line and Related Structures Construction
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
326199 – All Other Plastics Product Manufacturing
335139 – Electric Lamp Bulb and Other Lighting Equipment Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
236220 – Commercial and Institutional Building Construction
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
238190 – Other Foundation, Structure, and Building Exterior Contractors

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
327110 – Pottery, Ceramics, and Plumbing Fixture Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
332510 – Hardware Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
335311 – Power, Distribution, and Specialty Transformer Manufacturing
332710 – Machine Shops

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
332215 – Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing
322230 – Stationery Product Manufacturing
337215 – Showcase, Partition, Shelving, and Locker Manufacturing