Includes
Energizers; Engine Preheaters; Mooring Assemblies; Wheel Chocks; Beaching Equipment; Aileron, Elevator, and Rudder Locks; Passenger Loading Ramps; Maintenance Platforms; Aircraft Maintenance and Boarding Ladders; Aircraft Maintenance Slings and Hoists; Aircraft Fin Tilting Jacks; Airfield Specialized Lift Trucks and Trailers; Fitted Covers for Airframe Components; Aircraft Engine Covers.

Excludes
Airfield Specialized Trucks and Trailers designed primarily for transporting aircraft assemblies (FSC 1740); Maintenance Stands designed for support of aircraft assemblies during repair or overhaul (FSC 4920); Test Stands (FSC 4920); General Purpose Jacks (FSC 5120); Slings (FSC 3940), and Hoists (FSC 3950); Trailers (FSC 2330), Liquid Oxygen, Aircraft Servicing (FSC 1660).

Notes
This class excludes "vehicular components" such as those listed under FSCs 2520, 2530, 2540, 2590.

Possible NAICS Codes
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333519 – Rolling Mill and Other Metalworking Machinery Manufacturing
336411 – Aircraft Manufacturing
333924 – Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
488190 – Other Support Activities for Air Transportation

Includes
Metal Spray Guns; Arc Cutting Machines; Torches and Tips; Gas Brazing Machines; Flame Cutting Machines; Vacuum Metalizers; Spark Discharge Metalizers.

Excludes
Welding Supplies; Disintegrating Machines.

Possible NAICS Codes
333992 – Welding and Soldering Equipment Manufacturing
333519 – Rolling Mill and Other Metalworking Machinery Manufacturing
333248 – All Other Industrial Machinery Manufacturing
333517 – Machine Tool Manufacturing
488190 – Other Support Activities for Air Transportation
333611 – Turbine and Turbine Generator Set Units Manufacturing
444110 – Home Centers
334290 – Other Communications Equipment Manufacturing
333912 – Air and Gas Compressor Manufacturing

Includes
Shafts and Shafting; Collars; Gearshafts; Ball Joints; Actuating Cylinders.

Possible NAICS Codes
333613 – Mechanical Power Transmission Equipment Manufacturing
336411 – Aircraft Manufacturing
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332510 – Hardware Manufacturing
336350 – Motor Vehicle Transmission and Power Train Parts 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
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing

Description
Hardware

Includes
Access Covers; Bumpers; Casters; Cabinet and Door Hardware; Clevises; Hinges; Latches; Straps and Strapping; Turnbuckles; Webbed Straps.

Excludes
Weapons System Hardware (5342).

Notes
Common hardware designed primarily for commercial use will be classified in this FSC. Hardware is the physical, tangible, and permanent components of end items that may not be classified elsewhere. It consists also of common items that are commonly used in construction and/or manufacturing (e.g., hinges, door locks).

Possible NAICS Codes
332510 – Hardware Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
423710 – Hardware Merchant Wholesalers
444110 – Home Centers
339999 – All Other Miscellaneous Manufacturing
333618 – Other Engine Equipment Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336411 – Aircraft Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333120 – Construction Machinery Manufacturing

Includes
Metal Powder Compacting Presses.

Possible NAICS Codes
333517 – Machine Tool Manufacturing
333519 – Rolling Mill and Other Metalworking Machinery Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing
333514 – Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
332510 – Hardware Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332117 – Powder Metallurgy Part Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332710 – Machine Shops
333248 – All Other Industrial Machinery Manufacturing

Includes
Welding Tables.

Possible NAICS Codes
333992 – Welding and Soldering Equipment Manufacturing
333519 – Rolling Mill and Other Metalworking Machinery Manufacturing
339113 – Surgical Appliance and Supplies Manufacturing
335312 – Motor and Generator Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
333517 – Machine Tool Manufacturing
333515 – Cutting Tool and Machine Tool Accessory Manufacturing
333514 – Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
325211 – Plastics Material and Resin Manufacturing

Possible NAICS Codes
333517 – Machine Tool Manufacturing
333248 – All Other Industrial Machinery Manufacturing
333514 – Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333515 – Cutting Tool and Machine Tool Accessory Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
333519 – Rolling Mill and Other Metalworking Machinery Manufacturing
332510 – Hardware Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
423830 – Industrial Machinery and Equipment Merchant Wholesalers

Excludes
Marking Machines, Laundry; Printing Machine, Labor, Printing Press, Label; Embossing Machines, Office Type; and Marking Machines, Office Type.

Notes
Marking machines which make permanent indentations in metal are classified in group 34.

Possible NAICS Codes
541990 – All Other Professional, Scientific, and Technical Services
333517 – Machine Tool Manufacturing
333248 – All Other Industrial Machinery Manufacturing
332812 – Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
333519 – Rolling Mill and Other Metalworking Machinery Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
323111 – Commercial Printing (except Screen and Books)
339940 – Office Supplies (except Paper) Manufacturing
334111 – Electronic Computer Manufacturing

Includes
Manicure Tables

Possible NAICS Codes
335210 – Small Electrical Appliance Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333924 – Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
325211 – Plastics Material and Resin Manufacturing
334516 – Analytical Laboratory Instrument Manufacturing
513210 – Software Publishers
334111 – Electronic Computer Manufacturing
561990 – All Other Support Services
541519 – Other Computer Related Services
811210 – Electronic and Precision Equipment Repair and Maintenance

Includes
Communication Wire Dispenser Fabricating Machinery; Specialized Logging Equipment; Petroleum Refinery Machinery; Shoemaking Machinery; Production Type Impregnating Equipment.

Excludes
Opthalmic Lens Cutting and Grinding Machinery; Clothing Impregnating Equipment.

Possible NAICS Codes
333248 – All Other Industrial Machinery Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333517 – Machine Tool Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332710 – Machine Shops
334516 – Analytical Laboratory Instrument Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
334519 – Other Measuring and Controlling Device Manufacturing
333120 – Construction Machinery Manufacturing

Possible NAICS Codes
333517 – Machine Tool Manufacturing
333515 – Cutting Tool and Machine Tool Accessory Manufacturing
333514 – Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
444110 – Home Centers
332510 – Hardware Manufacturing
339999 – All Other Miscellaneous Manufacturing
333519 – Rolling Mill and Other Metalworking Machinery Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333248 – All Other Industrial Machinery Manufacturing
444140 – Hardware Retailers

Includes
Metal Powder Compacting Presses.

Possible NAICS Codes
333517 – Machine Tool Manufacturing
333248 – All Other Industrial Machinery Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333514 – Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
339999 – All Other Miscellaneous Manufacturing
332510 – Hardware Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing
332710 – Machine Shops
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
333996 – Fluid Power Pump and Motor Manufacturing

Includes
Control Assemblies, Push-Pull; Brace, Positioning Cargo Ramp Stowed on Board; Cockpit Mounted Control Quadrants; Actuators, Electromechanical and Mechanical; Ventilators; Relief Tubes; Map Holders; Aerial Glider Towing Accessories Attached to Aircraft; Belts, Safety and Lap; Harness, Shoulder and Safety; Litter Attaching Supports; Electric Windshield Wipers; Aircraft Onboard Inert Gas Generators; Aircraft Furniture; Aircraft Mounted Winches and Hoists; In-Flight Refueling System Components, including Fuel Components; Aircraft Curtains; Cable Tension Regulators; Sun Visors; Rear-View Mirrors; Mechanical Transmissions, Gearboxes and Constant Speed Drives Specially Designed for Aircraft.

Excludes
Engine Mounted Control Assemblies; Fitted Covers, Aircraft Pylons; Helicopter Rotor Brake System Components; Helicopter Automatic Stabilization Equipment.

Possible NAICS Codes
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
488190 – Other Support Activities for Air Transportation
336412 – Aircraft Engine and Engine Parts Manufacturing

Description
Maintenance, Repair and Rebuilding of Equipment: Ship and Marine Equipment

Possible NAICS Codes
336611 – Ship Building and Repairing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
811210 – Electronic and Precision Equipment Repair and Maintenance
333618 – Other Engine Equipment Manufacturing
541330 – Engineering Services
488390 – Other Support Activities for Water Transportation
332313 – Plate Work Manufacturing

Includes
Substrate Preparation Equipment; Circuit Pattern Forming Equipment; Interconnecting and Packaging Equipment.

Excludes
Assembly Machines for Mounting Discrete Components on Printed Wiring Boards.

Notes
This class includes, and is restricted to, equipment specifically designed for manufacturing semiconductor devices (FSC 5961), microcircuits (FSC 5962), and printed circuit boards (FSC 5998). Excludes items for which more suitable classes are specifically prescribed by the indexes and structure of the FSC.

Possible NAICS Codes
333242 – Semiconductor Machinery Manufacturing
334412 – Bare Printed Circuit Board Manufacturing
334418 – Printed Circuit Assembly (Electronic Assembly) Manufacturing
334413 – Semiconductor and Related Device Manufacturing
334419 – Other Electronic Component Manufacturing
334111 – Electronic Computer Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
334516 – Analytical Laboratory Instrument Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
334515 – Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals