Includes
Rotary, Knife, Toggle. Push Button, Mercury, Thermostatic, and Differential Pressure Switches.

Excludes
Switchgear.

Possible NAICS Codes
335313 – Switchgear and Switchboard Apparatus Manufacturing
334419 – Other Electronic Component Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing
333618 – Other Engine Equipment Manufacturing
332919 – Other Metal Valve and Pipe Fitting Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335314 – Relay and Industrial Control Manufacturing
334413 – Semiconductor and Related Device Manufacturing
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
332112 – Nonferrous Forging

Includes
Circuit Breakers and Cutouts.

Excludes
Relays.

Possible NAICS Codes
335313 – Switchgear and Switchboard Apparatus Manufacturing
221118 – Other Electric Power Generation
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
444180 – Other Building Material Dealers
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
334419 – Other Electronic Component Manufacturing
333120 – Construction Machinery Manufacturing
334412 – Bare Printed Circuit Board Manufacturing

Description
Fuses, Arresters, Absorbers, and Protectors

Includes
Fuseholders; Fuse Boxes; Fuse Posts; Fuse Links; Fuse blocks; Current Limiters. Corona Balls, Electrostatic Dischargers.

Excludes
Circuit Breakers.

Possible NAICS Codes
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing
335313 – Switchgear and Switchboard Apparatus Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
334413 – Semiconductor and Related Device Manufacturing
444180 – Other Building Material Dealers
332216 – Saw Blade and Handtool Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing

Includes
Contactors: Motor Controllers; Power Servomechanisms; Switchgear; Voltage Regulators.

Excludes
Automatic Pilot Mechanisms; Relays; Resistors.

Possible NAICS Codes
334519 – Other Measuring and Controlling Device Manufacturing
335312 – Motor and Generator Manufacturing
335314 – Relay and Industrial Control Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
332510 – Hardware Manufacturing
335313 – Switchgear and Switchboard Apparatus Manufacturing
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
335311 – Power, Distribution, and Specialty Transformer Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
333998 – All Other Miscellaneous General Purpose Machinery 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
811210 – Electronic and Precision Equipment Repair and Maintenance
541330 – Engineering Services
333618 – Other Engine Equipment Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
561990 – All Other Support Services
488390 – Other Support Activities for Water Transportation
335313 – Switchgear and Switchboard Apparatus Manufacturing

Includes
Appliance and Extension Cords; Electric Power and Distribution Cable with Attachments, Multiapplication; Common Components of Electrical Rotating Equipment, such as End Bells and Frames.

Possible NAICS Codes
334419 – Other Electronic Component Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
335139 – Electric Lamp Bulb and Other Lighting Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332510 – Hardware Manufacturing
333618 – Other Engine Equipment Manufacturing
336411 – Aircraft Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Includes
Sails; Chain Ladders; Rope Ladders; Marine Furniture.

Possible NAICS Codes
336611 – Ship Building and Repairing
441222 – Boat Dealers
333618 – Other Engine Equipment Manufacturing
332322 – Sheet Metal Work Manufacturing
333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
333914 – Measuring, Dispensing, and Other Pumping Equipment Manufacturing
332911 – Industrial Valve Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

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

Possible NAICS Codes
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
334419 – Other Electronic Component Manufacturing
334416 – Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334413 – Semiconductor and Related Device Manufacturing
334111 – Electronic Computer Manufacturing
334417 – Electronic Connector Manufacturing
339999 – All Other Miscellaneous Manufacturing
339991 – Gasket, Packing, and Sealing Device 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
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
335931 – Current-Carrying Wiring Device Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332710 – Machine Shops
444140 – Hardware Retailers
423710 – Hardware Merchant Wholesalers
327110 – Pottery, Ceramics, and Plumbing Fixture Manufacturing

Includes
Plugs; Jacks; Receptacles; Electronic Component Sockets and Associated Accessories.

Excludes
Interconnectors, Fiber Optic.

Possible NAICS Codes
334417 – Electronic Connector Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing
332112 – Nonferrous Forging
444180 – Other Building Material Dealers
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
336411 – Aircraft Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
333914 – Measuring, Dispensing, and Other Pumping Equipment 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
339999 – All Other Miscellaneous Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
423710 – Hardware Merchant Wholesalers
444140 – Hardware Retailers
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Description
Maintenance, Repair and Rebuilding of Equipment: Electrical and Electronic Equipment Components

Possible NAICS Codes
811210 – Electronic and Precision Equipment Repair and Maintenance
238210 – Electrical Contractors and Other Wiring Installation Contractors
541330 – Engineering Services
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
238290 – Other Building Equipment Contractors
561210 – Facilities Support Services
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
334515 – Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing

Includes
Electromagnetic Actuators.

Excludes
Contactors.

Possible NAICS Codes
335314 – Relay and Industrial Control Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
334418 – Printed Circuit Assembly (Electronic Assembly) Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
444180 – Other Building Material Dealers
333618 – Other Engine Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
334413 – Semiconductor and Related Device Manufacturing

Description
Electrical and Electronic Assemblies; Boards, Cards, and Associated Hardware

Excludes
circuit card and electronic component assemblies which can be identified to a more definitive Approved Item Name.

Possible NAICS Codes
334412 – Bare Printed Circuit Board Manufacturing
334418 – Printed Circuit Assembly (Electronic Assembly) Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334111 – Electronic Computer Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
444180 – Other Building Material Dealers
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing

Includes
All drugs, medicinal grade chemicals, and biologicals subject to the Federal Food, Drug and Cosmetic Act, Department of Agriculture (Veterinary Drugs and Biologicals), listed in the Monograph Section of the U.S. Pharmacopeia or the National Formulary or covered by the United States Adopted Names (USAN).

Excludes
Medicated cosmetics and toiletries classifiable in FSC 6508 and in vitro diagnostic substances and reagents classifiable in FSC 6550.

Possible NAICS Codes
424210 – Drugs and Druggists' Sundries Merchant Wholesalers
325411 – Medicinal and Botanical Manufacturing
325412 – Pharmaceutical Preparation Manufacturing
423450 – Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers