Includes
Railroad Rails; Railroad Tie Plates; Railroad Turnouts and Components; Railroad Spikes.

Excludes
Ballast (FSC 5610); Railroad Ties (FSC 5510).

Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
326199 – All Other Plastics Product Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
321114 – Wood Preservation
336611 – Ship Building and Repairing
331210 – Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
237990 – Other Heavy and Civil Engineering Construction
327390 – Other Concrete Product Manufacturing
332312 – Fabricated Structural Metal Manufacturing
332313 – Plate Work Manufacturing

Includes
Brake Beams and Components; Couplers; Trucks and Components; Journals and Components; Wheel Sets and Components.

Excludes
Railroad Furniture (FSG 71).

Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
334519 – Other Measuring and Controlling Device Manufacturing
532120 – Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336110 – Automobile and Light Duty Motor Vehicle Manufacturing
332312 – Fabricated Structural Metal Manufacturing
333112 – Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing
333120 – Construction Machinery Manufacturing
333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
335312 – Motor and Generator Manufacturing

Includes
Hand Grease Guns; Centralized Lubrication Systems; Hydrostatic Lubricators; Oil and Gasoline Dispensing Pumps; Fuel Oil Dispensing Pumps; Hand Oilers; Grease Dispensers; Pressure Gun Attachments; Sight Feed Lubricators.

Excludes
Alemite and Lubrication Fittings (FSC 4730).

Possible NAICS Codes
333914 – Measuring, Dispensing, and Other Pumping Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
331318 – Other Aluminum Rolling, Drawing, and Extruding
333912 – Air and Gas Compressor Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
339993 – Fastener, Button, Needle, and Pin Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332919 – Other Metal Valve and Pipe Fitting Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Description
Right-of-Way Construction and Maintenance Equipment, Railroad

Includes
Rail Laying, Joining, and Shifting Equipment; Self Propelled and Car Mounted Cranes.

Excludes
Hand Tools (FSG 51).

Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
336212 – Truck Trailer Manufacturing
237990 – Other Heavy and Civil Engineering Construction
333120 – Construction Machinery Manufacturing
238910 – Site Preparation Contractors
336214 – Travel Trailer and Camper Manufacturing
237310 – Highway, Street, and Bridge Construction
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
333111 – Farm Machinery and Equipment Manufacturing
333112 – Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing

Includes
Trailed Cars; Self-Propelled Cars.

Excludes
Aerial Tramway Cars.

Notes
This class includes only complete rail cars. End items, assemblies, parts, attachments, or accessories for use in or on rail cars are classified in classes other than this class.

Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
336999 – All Other Transportation Equipment Manufacturing
237990 – Other Heavy and Civil Engineering Construction
333248 – All Other Industrial Machinery Manufacturing
336211 – Motor Vehicle Body Manufacturing
482111 – Line-Haul Railroads
485111 – Mixed Mode Transit Systems
488210 – Support Activities for Rail Transportation

Description
Maintenance, Repair and Rebuilding of Equipment: Railway Equipment

Possible NAICS Codes
488210 – Support Activities for Rail Transportation
237990 – Other Heavy and Civil Engineering Construction
541350 – Building Inspection Services
336510 – Railroad Rolling Stock Manufacturing
211130 – Natural Gas Extraction
811121 – Automotive Body, Paint, and Interior Repair and Maintenance
811198 – All Other Automotive Repair and Maintenance
238210 – Electrical Contractors and Other Wiring Installation Contractors
333517 – Machine Tool Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables

Excludes
Self-Propelled Cars.

Notes
This class includes only complete locomotives and tenders. End items, assemblies, parts, attachments, or accessories for use in or on locomotives and tenders are classified in classes other than this class.

Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
488210 – Support Activities for Rail Transportation
325992 – Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing
335910 – Battery Manufacturing
492110 – Couriers and Express Delivery Services
562112 – Hazardous Waste Collection

Possible NAICS Codes
331210 – Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
332111 – Iron and Steel Forging
331511 – Iron Foundries
336510 – Railroad Rolling Stock Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

Includes
Propulsion Shafts; Ship Propellers; Marine Transmissions, Reverse and Reduction Gear Type.

Excludes
Engines (FSC 2810, 2815); Turbines (FSC 2825, 2835, 2840).

Possible NAICS Codes
336415 – Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing
333618 – Other Engine Equipment Manufacturing
336612 – Boat Building
336611 – Ship Building and Repairing
336214 – Travel Trailer and Camper Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing
331529 – Other Nonferrous Metal Foundries (except Die-Casting)
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
339991 – Gasket, Packing, and Sealing Device Manufacturing

Includes
Asphalt Elevators; Asphalt Heaters; Asphalt Kettles; Asphalt Transfer Equipment; Batching Plants; Stabilizing and Compacting Equipment; Concrete Mixers (All Types); Concrete Vibrators; Bituminous and Concrete Pavers; Asphalt Distributors; Sheepsfoot Rollers; Rooters; Rippers; Pile Drivers; Bitumen Heaters; Cable Laying, Lashing, Spinning, and Reeling Equipment.

Excludes
Earth Moving and Excavating Equipment (FSC 3805 & 3810); Pile Driving Attachments for Cranes and Crane-Shovels (FSC 3815); Special Individual Work and Power Sections of Construction Equipment with a quick connect/disconnect capability (FSC 3805)

Possible NAICS Codes
333120 – Construction Machinery Manufacturing
423830 – Industrial Machinery and Equipment Merchant Wholesalers
333924 – Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
336110 – Automobile and Light Duty Motor Vehicle Manufacturing
532412 – Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing
332510 – Hardware Manufacturing
333618 – Other Engine Equipment Manufacturing
212321 – Construction Sand and Gravel Mining
541614 – Process, Physical Distribution, and Logistics Consulting Services
324121 – Asphalt Paving Mixture and Block Manufacturing

Includes
Anchors; Grapnels; Sea Anchors; Watertight Doors; Ship Ventilators; Hatches; Manholes; Scuttles; Air Ports; Fenders; Sea Chests; Scuppers; Rudders; Stern Tubes; Chain Pipes; Hawse Pipes; Boiler Uptakes and Stacks; Chocks; Mast and Boom Fittings; Oars; Paddles; Oarlocks.

Possible NAICS Codes
332510 – Hardware Manufacturing
336612 – Boat Building
114119 – Other Marine Fishing
332321 – Metal Window and Door Manufacturing
336611 – Ship Building and Repairing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332312 – Fabricated Structural Metal Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332322 – Sheet Metal Work Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing

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
Adapters; Bends; Caps; Clamps; Connectors; Couplings; Crosses; Elbows; Expansion Joints; Ferrules; Flanges; Laterals; Lubrication Fittings; Manifolds; Nipples; Nozzles; Outlets; Plugs; Reducers; Swing and Swivel Joints; Tees; Traps; Unions; Wyes.

Excludes
Air Conditioning-Heating Fittings (FSC 4520); Bituminized Fiber and Concrete Fittings (FSC 5630); Conduit Boxes and Fittings (FSC 5975); Downspout Fittings (FSC 5670); Medical and Surgical Fittings (FSC 6515); Laboratory Fittings (FSC 6640); Post Caps and Rail Ends (FSC 5660); Machine Thread Bushings and Plugs (FSC 5365).

Possible NAICS Codes
332996 – Fabricated Pipe and Pipe Fitting Manufacturing
332919 – Other Metal Valve and Pipe Fitting Manufacturing
326122 – Plastics Pipe and Pipe Fitting Manufacturing
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333120 – Construction Machinery Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

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
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