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
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332510 – Hardware Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing

Includes
Naphtha Solvents; Water Softening Compounds; Tanning Materials, Natural or Synthetic; Dextrines and Starches; Inedible Gelatins; Acetone; Propellant Chemicals, Bulk not specialized solely for Guided Missile Use.

Excludes
Medicinal Chemicals; Gases; Foundry Dextrines; Radiographic and photographic Chemicals; In Vitro Diagnostic Substances and Reagents.

Possible NAICS Codes
324191 – Petroleum Lubricating Oil and Grease Manufacturing
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
325199 – All Other Basic Organic Chemical Manufacturing
325611 – Soap and Other Detergent Manufacturing
325180 – Other Basic Inorganic Chemical Manufacturing
325612 – Polish and Other Sanitation Good Manufacturing
325120 – Industrial Gas Manufacturing
325910 – Printing Ink Manufacturing

Includes
Alloying additives (Aluminum, Antimony, Copper, and Others).

Excludes
Fuel Inhibiting Additives (FSC 6850).

Notes
Only bulk material will be identified in this class. Additive metal materials are those which are added to metals to improve their characteristics as required (e.g., lead added to steel to improve the machinability).

Possible NAICS Codes
541714 – Research and Development in Biotechnology (except Nanobiotechnology)
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
331492 – Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)
333248 – All Other Industrial Machinery Manufacturing
332510 – Hardware Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
332117 – Powder Metallurgy Part Manufacturing
331314 – Secondary Smelting and Alloying of Aluminum
325180 – Other Basic Inorganic Chemical Manufacturing
212290 – Other Metal Ore Mining

Possible NAICS Codes
238320 – Painting and Wall Covering Contractors
561210 – Facilities Support Services
236118 – Residential Remodelers
238990 – All Other Specialty Trade Contractors
238330 – Flooring Contractors
236220 – Commercial and Institutional Building Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238390 – Other Building Finishing Contractors
238140 – Masonry Contractors
561720 – Janitorial Services

Description
Other Cargo and Freight Services

Possible NAICS Codes
492110 – Couriers and Express Delivery Services
484210 – Used Household and Office Goods Moving
488510 – Freight Transportation Arrangement
481212 – Nonscheduled Chartered Freight Air Transportation
485999 – All Other Transit and Ground Passenger Transportation
484110 – General Freight Trucking, Local
488991 – Packing and Crating
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
484220 – Specialized Freight (except Used Goods) Trucking, Local
488310 – Port and Harbor Operations

Includes
Bullion; Ingot.

Notes
Only bulk material will be identified in this class. Primary Forms are raw unfinished ingots, pigs, that require refinement to be usable and are made of precious metals.

Possible NAICS Codes
331410 – Nonferrous Metal (except Aluminum) Smelting and Refining
331491 – Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
423940 – Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers

Includes
Ingots; Slabs.

Notes
Only bulk material will be identified in this class. a. Refinery Forms are raw unfinished ingots, pigs, that require refinement to be usable. b. Intermediate forms are primary products that have been refined to a state that requires further manufacturing processes to its final, usable state.

Possible NAICS Codes
331410 – Nonferrous Metal (except Aluminum) Smelting and Refining
331491 – Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
331420 – Copper Rolling, Drawing, Extruding, and Alloying
331313 – Alumina Refining and Primary Aluminum Production
336412 – Aircraft Engine and Engine Parts Manufacturing
332710 – Machine Shops
332991 – Ball and Roller Bearing Manufacturing
332813 – Electroplating, Plating, Polishing, Anodizing, and Coloring
332439 – Other Metal Container Manufacturing
331492 – Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)

Includes
Angles; Channels; Tees; Zees.

Possible NAICS Codes
332112 – Nonferrous Forging
488190 – Other Support Activities for Air Transportation
331491 – Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
333924 – Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
562920 – Materials Recovery Facilities
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

Possible NAICS Codes
332112 – Nonferrous Forging
488190 – Other Support Activities for Air Transportation
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
331491 – Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
331315 – Aluminum Sheet, Plate, and Foil Manufacturing
332312 – Fabricated Structural Metal Manufacturing
423510 – Metal Service Centers and Other Metal Merchant Wholesalers
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
333992 – Welding and Soldering Equipment Manufacturing

Includes
Antifogging Compounds; Wetting Agents; Etching and Fountain Solutions for Lithographing; Blanket Repair Solutions for Lithographing; Antifreeze.

Possible NAICS Codes
324191 – Petroleum Lubricating Oil and Grease Manufacturing
325510 – Paint and Coating Manufacturing
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing

Includes
Binoculars; Magnifiers; Microscopes; Periscopes; Telescopes. Optical Elements, such as Lens, Prisms, Windows; Optical Benches and associated devices; Endoscopes, Fiber Optics (non-medical).

Excludes
Fire Control Instruments, Optical; Surveying Instruments, Optical; Photogrammetric Instruments; Octants and Sextants; Optical Instruments Integrated with Fire Control Equipment; Ophthalmological Instruments; Electronic Fiber Optic Test Equipment; Medical Endoscopes.

Possible NAICS Codes
333310 – Commercial and Service Industry Machinery Manufacturing
334516 – Analytical Laboratory Instrument Manufacturing
424420 – Packaged Frozen Food Merchant Wholesalers
334519 – Other Measuring and Controlling Device Manufacturing
334515 – Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
339115 – Ophthalmic Goods Manufacturing
339112 – Surgical and Medical Instrument Manufacturing

Includes
Anti-intrusion Alarm Systems; Foghorns; Gongs; Chimes; Bells; Burglar Alarm Systems; Fire Alarms; Police Alarm Systems; Sounding Devices; Manual Gas Alarms; Landing Wands.

Excludes
Loran; Radar; Sonar; Engine Oil and Fuel Warning Devices; Aircraft Oxygen Warning Devices.

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
334290 – Other Communications Equipment Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
334519 – Other Measuring and Controlling Device Manufacturing
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
333120 – Construction Machinery Manufacturing
541519 – Other Computer Related Services
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing

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

Includes
Adapters; Anchor Plates and Straps; Anodes; Bellows; Couplings; Control Rods; Access Doors; Fairleads; Mounts; Tie Rods; Yokes.

Excludes
Commercial Hardware (FSC 5340).

Notes
Hardware designed for weapon systems unique applications will be classified in this FSC.

Possible NAICS Codes
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
332510 – Hardware Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
336411 – Aircraft Manufacturing
333618 – Other Engine Equipment Manufacturing
332710 – Machine Shops
333120 – Construction Machinery Manufacturing
336412 – Aircraft Engine and Engine Parts Manufacturing

Includes
Insect Screening; Industrial Metal Cloth; Industrial Metal Mesh.

Excludes
Fencing (FSC 5660).

Notes
Metal Screening is a perforated plate or cylinder or a meshed wire fabric usually mounted and used to separate coarse from finer parts.

Possible NAICS Codes
332321 – Metal Window and Door Manufacturing
332618 – Other Fabricated Wire Product Manufacturing
331318 – Other Aluminum Rolling, Drawing, and Extruding
333511 – Industrial Mold Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336411 – Aircraft Manufacturing
334519 – Other Measuring and Controlling Device Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing