Includes
Brushes for electrical rotating equipment; Carbon Stock for Brushes; Brush Arm and Holders; Lighting Electrodes.

Excludes
Anodes; Cathodes, Welding Electrodes.

Possible NAICS Codes
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
335991 – Carbon and Graphite Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335312 – Motor and Generator Manufacturing
335910 – Battery Manufacturing
444180 – Other Building Material Dealers
335311 – Power, Distribution, and Specialty Transformer Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Possible NAICS Codes
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
336411 – Aircraft Manufacturing
332721 – Precision Turned Product Manufacturing
332510 – Hardware Manufacturing
332112 – Nonferrous Forging
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332912 – Fluid Power Valve and Hose Fitting Manufacturing

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
Permanent Magnets and Magnetostriction Elements; Caps, Clips, and Contacts, Electrical.

Possible NAICS Codes
334419 – Other Electronic Component Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
334416 – Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing
334413 – Semiconductor and Related Device Manufacturing
339991 – Gasket, Packing, and Sealing Device Manufacturing
336411 – Aircraft Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334417 – Electronic Connector Manufacturing
541519 – Other Computer Related Services

Includes
Clays and other Earths; Mica; Asbestos; Crude Petroleum; Graphite.

Excludes
Gravel (FSC 5610); Sand (FSC 5610); Abrasives (FSC 5350); Refractory Clays (FSC 9350).

Notes
Only bulk material will be identified in this class. Minerals are naturally occurring substances with a characteristic chemical composition that can be expressed by a formula.

Possible NAICS Codes
212390 – Other Nonmetallic Mineral Mining and Quarrying
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
212321 – Construction Sand and Gravel Mining
212319 – Other Crushed and Broken Stone Mining and Quarrying
325180 – Other Basic Inorganic Chemical Manufacturing
327992 – Ground or Treated Mineral and Earth Manufacturing
212312 – Crushed and Broken Limestone Mining and Quarrying
335991 – Carbon and Graphite Product Manufacturing
212311 – Dimension Stone Mining and Quarrying
444140 – Hardware Retailers

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
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336412 – Aircraft Engine and Engine Parts Manufacturing
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing

Includes
Tube, Knob, Cleat, Strain, and Standoff Insulators; Feed Thru Insulators; Bead Insulators; Varnish Cambrie Tape; Friction Tape.

Possible NAICS Codes
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
335932 – Noncurrent-Carrying Wiring Device Manufacturing
326122 – Plastics Pipe and Pipe Fitting Manufacturing
339999 – All Other Miscellaneous Manufacturing
331210 – Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing

Includes
Cork Fabricated Basic Materials; Asbestos Fabricated Materials; Manufactured Mica; Minerals for scientific and technical use (cut but not mounted); Pottery Supplies; Catgut and Wormgut; Vegetable Brush Fibers; Bagasse.

Possible NAICS Codes
327999 – All Other Miscellaneous Nonmetallic Mineral Product Manufacturing
325991 – Custom Compounding of Purchased Resins
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332510 – Hardware Manufacturing
337214 – Office Furniture (except Wood) Manufacturing
339950 – Sign Manufacturing
333618 – Other Engine Equipment Manufacturing
326199 – All Other Plastics Product Manufacturing
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
313230 – Nonwoven Fabric Mills

Includes
Generators, Magnetos, Spark Plugs; Ignition Coils; Ignition Distributors; Engine Voltage Regulators; Ignition Harness Assemblies; Starting Motors for Engines.

Excludes
Vehicular Lighting Fixtures (FSC 6220) and Aircraft Generators (FSC 2925).

Possible NAICS Codes
336320 – Motor Vehicle Electrical and Electronic Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
339950 – Sign Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
336211 – Motor Vehicle Body Manufacturing
333120 – Construction Machinery Manufacturing

Possible NAICS Codes
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541714 – Research and Development in Biotechnology (except Nanobiotechnology)
541990 – All Other Professional, Scientific, and Technical Services
541713 – Research and Development in Nanotechnology
611310 – Colleges, Universities, and Professional Schools
541720 – Research and Development in the Social Sciences and Humanities
541330 – Engineering Services
541380 – Testing Laboratories and Services
541690 – Other Scientific and Technical Consulting Services

Excludes
Packing and Gasket Material (FSC 5330).

Possible NAICS Codes
339991 – Gasket, Packing, and Sealing Device Manufacturing
333618 – Other Engine Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
332618 – Other Fabricated Wire Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing
333120 – Construction Machinery Manufacturing

Includes
Sonar Equipment; Underwater Listening Equipment; Sonobuoys; Sonobuoy Launchers; Fathometers; Sonar Equipment.

Notes
This class excludes items specifically designed for fire control sonar systems.

Possible NAICS Codes
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334290 – Other Communications Equipment Manufacturing
336411 – Aircraft Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
334412 – Bare Printed Circuit Board Manufacturing

Includes
Flow-Pressure Instruments; Taximeters; Dynamometers.

Excludes
Dental, Medical, Surgical, and Veterinary Instruments.

Possible NAICS Codes
334519 – Other Measuring and Controlling Device Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
334515 – Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
334516 – Analytical Laboratory Instrument Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
336411 – Aircraft Manufacturing

Possible NAICS Codes
332112 – Nonferrous Forging
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
488190 – Other Support Activities for Air Transportation
331491 – Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
331410 – Nonferrous Metal (except Aluminum) Smelting and Refining
332312 – Fabricated Structural Metal Manufacturing

Includes
Structural Components; Components and Accessories Specially Designed for use on or with guided missiles, including Complete Gyro Mechanisms, Hydraulic Pumps, Automatic Pilot Mechanisms and Specially Designed Assemblies, and Electronic Guidance Equipment installed in missiles.

Excludes
Electronic Remote Guidance Equipment used to guide missiles; Solid and Liquid Propellant Units; Components of Gyro Mechanisms.

Possible NAICS Codes
336419 – Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing
336415 – Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336414 – Guided Missile and Space Vehicle Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
336411 – Aircraft Manufacturing
339999 – All Other Miscellaneous Manufacturing