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
335910 – Battery Manufacturing
335312 – Motor and Generator Manufacturing
444180 – Other Building Material Dealers
332991 – Ball and Roller Bearing Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing

Possible NAICS Codes
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336411 – Aircraft Manufacturing
333618 – Other Engine Equipment Manufacturing
332721 – Precision Turned Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332510 – Hardware Manufacturing
332112 – Nonferrous Forging
332912 – Fluid Power Valve and Hose Fitting Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery 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
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
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
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
339991 – Gasket, Packing, and Sealing Device Manufacturing
336411 – Aircraft Manufacturing
334417 – Electronic Connector Manufacturing
334111 – Electronic Computer 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
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
339950 – Sign Manufacturing
332510 – Hardware Manufacturing
325991 – Custom Compounding of Purchased Resins
337214 – Office Furniture (except Wood) Manufacturing
326199 – All Other Plastics Product Manufacturing
333618 – Other Engine Equipment Manufacturing
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

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
212321 – Construction Sand and Gravel Mining
212319 – Other Crushed and Broken Stone Mining and Quarrying
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
212312 – Crushed and Broken Limestone Mining and Quarrying
444140 – Hardware Retailers
423990 – Other Miscellaneous Durable Goods Merchant Wholesalers
327992 – Ground or Treated Mineral and Earth Manufacturing
325180 – Other Basic Inorganic Chemical Manufacturing
212311 – Dimension Stone Mining and Quarrying

Includes
Offset Presses; Typesetting Machinery; Bookbinding Machinery; Photoengraving Machinery; Printing Type; Rules; Leads, Slugs; Line Gages; Quoins; Plate Hooks; Gelatine Process Machines; Spirit Process Machines; Stencil Process Machines; Offset Process Machines; Photostat Machines; Blueprint Printing and Developing Machines; Print Shop Furniture.

Excludes
Microfilm Machines.

Possible NAICS Codes
339940 – Office Supplies (except Paper) Manufacturing
333248 – All Other Industrial Machinery Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
532420 – Office Machinery and Equipment Rental and Leasing
541519 – Other Computer Related Services
811210 – Electronic and Precision Equipment Repair and Maintenance
334111 – Electronic Computer Manufacturing
323111 – Commercial Printing (except Screen and Books)
423420 – Office Equipment Merchant Wholesalers
334118 – Computer Terminal and Other Computer Peripheral Equipment Manufacturing

Description
Aircraft Hydraulic, Vacuum and De-icing System Components

Includes
Hydraulic and Pneumatic Accumulators, Pumps, Motors, Actuating Cylinders, and Filters; De-icing Boots; Fluid Type De-icing Pumps, Valves and Filters; Vacuum System Oil Separators; Pneumatic Pressurization Equipment other than that for pressurizing cabins and compartments.

Excludes
Jet Engine Hydraulic Components (FSC 2840); Valves specifically designed for air conditioning, heating. ventilating, cabin pressurizing, and thermal de-icing (FSC 1660); Valves specifically designed for use with Aircraft Engines (FSC 2840); Guided Missiles and Guided Missile Engines (FSC 1338); Landing Gear (FSC 1620), Wheel and Brake System Components (FSC 1630); Oxygen Breathing System Components (FSC 1660); In-flight Refueling System Hydraulic components (FSC 1680); Specifically designed hydraulic power steering system components (FSC 1620).

Notes
This class includes only those components specifically designed for aircraft use.

Possible NAICS Codes
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332991 – Ball and Roller Bearing Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
333618 – Other Engine Equipment 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
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
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
333995 – Fluid Power Cylinder and Actuator Manufacturing

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

Includes
Clothing specially designed for use as personal armor.

Excludes
all specialized flight clothing and accessories which may contain ballistic resistant properties as a secondary function. Excludes special purpose clothing wherein the primary function is for purpose other than ballistic protection.

Possible NAICS Codes
315990 – Apparel Accessories and Other Apparel Manufacturing
339113 – Surgical Appliance and Supplies Manufacturing
339999 – All Other Miscellaneous Manufacturing
315250 – Cut and Sew Apparel Manufacturing (except Contractors)
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
316990 – Other Leather and Allied Product Manufacturing
315210 – Cut and Sew Apparel Contractors
314999 – All Other Miscellaneous Textile Product Mills
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332510 – Hardware 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
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
334419 – Other Electronic Component Manufacturing
333618 – Other Engine Equipment Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
334412 – Bare Printed Circuit Board Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Excludes
Packing and Gasket Material (FSC 5330).

Possible NAICS Codes
339991 – Gasket, Packing, and Sealing Device Manufacturing
333618 – Other Engine Equipment Manufacturing
336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
332618 – Other Fabricated Wire Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333120 – Construction Machinery Manufacturing

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
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
339950 – Sign Manufacturing
336211 – Motor Vehicle Body Manufacturing
333914 – Measuring, Dispensing, and Other Pumping Equipment Manufacturing