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

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
339999 – All Other Miscellaneous Manufacturing
423710 – Hardware Merchant Wholesalers
333618 – Other Engine Equipment Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
444140 – Hardware Retailers
333120 – Construction Machinery Manufacturing

Possible NAICS Codes
331210 – Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
332111 – Iron and Steel Forging
331511 – Iron Foundries
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336510 – Railroad Rolling Stock Manufacturing
332431 – Metal Can Manufacturing
332322 – Sheet Metal Work Manufacturing

Includes
Ingots; Pigs; Billets; Blooms; Muck Bar; Rods for Wire; Sheet Bar; Skelp; Tube Rounds.

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

Possible NAICS Codes
332312 – Fabricated Structural Metal Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
332111 – Iron and Steel Forging
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
331210 – Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
331221 – Rolled Steel Shape Manufacturing
423510 – Metal Service Centers and Other Metal Merchant Wholesalers
332322 – Sheet Metal Work Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
332321 – Metal Window and Door Manufacturing

Includes
Anchors; Grapnels; Sea Anchors; Watertight Doors; Ship Ventilators; Hatches; Manholes; Scuttles; Air Ports; Fenders; Sea Chests; Scuppers; Rudders; Stern Tubes; Chain Pipes; Hawse Pipes; Boiler Uptakes and Stacks; Chocks; Mast and Boom Fittings; Oars; Paddles; Oarlocks.

Possible NAICS Codes
332510 – Hardware Manufacturing
336612 – Boat Building
332321 – Metal Window and Door Manufacturing
336611 – Ship Building and Repairing
114119 – Other Marine Fishing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332322 – Sheet Metal Work Manufacturing
332312 – Fabricated Structural Metal Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing

Description
Foundry Machinery, Related Equipment and Supplies.

Includes
Molding Machines; Tumbling Mills, Foundry Dextrine; Core Paste.

Excludes
Crucible Furnaces; Cupola Furnaces; Foundry Hand Tools.

Possible NAICS Codes
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332996 – Fabricated Pipe and Pipe Fitting Manufacturing
333994 – Industrial Process Furnace and Oven Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
333517 – Machine Tool Manufacturing
333515 – Cutting Tool and Machine Tool Accessory Manufacturing
333511 – Industrial Mold Manufacturing
332312 – Fabricated Structural Metal Manufacturing

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

Possible NAICS Codes
336611 – Ship Building and Repairing
441222 – Boat Dealers
332322 – Sheet Metal Work Manufacturing
333618 – Other Engine Equipment Manufacturing
333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332321 – Metal Window and Door Manufacturing
332911 – Industrial Valve Manufacturing
114119 – Other Marine Fishing
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing

Includes
Filing Cabinets; Safes; Post Office Furniture; School Furniture; Blackboards.

Excludes
Dental X-Ray Film Protective Safes; Visible Record Equipment.

Possible NAICS Codes
337214 – Office Furniture (except Wood) Manufacturing
337211 – Wood Office Furniture Manufacturing
337215 – Showcase, Partition, Shelving, and Locker Manufacturing
334111 – Electronic Computer Manufacturing
337122 – Nonupholstered Wood Household Furniture Manufacturing
337127 – Institutional Furniture Manufacturing

Includes
Bleachers; Grandstands.

Possible NAICS Codes
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
332311 – Prefabricated Metal Building and Component Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
236220 – Commercial and Institutional Building Construction

Includes
Culvert Pipes; Culvert Pipe Connector Bands; Metallic Pipes; Plastic Pipes; Tubes and Rigid Tubing and their assemblies.

Excludes
Air Conditioning-Heating Pipes (FSC 4520); Asbestos and Cement, Bituminized Fiber, Clay and Concrete Pipes (FSC 5630); Conduit Pipes and their assemblies (FSC 5975); Downspout Pipes (FSC 5670); Exhaust Pipes (FSC 1560, 2990, and 4520); Fire Extinguishing Systems Pipes and Tubes and their assemblies (FSC 4210); Flexible Tubing (FSC 4720; Glass Tubing (FSC 6640, and 9340); Laboratory Tubes (FSC 6640); Medical and Surgical Tubes (FSC 6515).

Possible NAICS Codes
336411 – Aircraft Manufacturing
331210 – Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
332996 – Fabricated Pipe and Pipe Fitting Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
331420 – Copper Rolling, Drawing, Extruding, and Alloying
326122 – Plastics Pipe and Pipe Fitting Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
488190 – Other Support Activities for Air Transportation
332510 – Hardware Manufacturing

Possible NAICS Codes
221310 – Water Supply and Irrigation Systems
237110 – Water and Sewer Line and Related Structures Construction
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238990 – All Other Specialty Trade Contractors
237990 – Other Heavy and Civil Engineering Construction
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238210 – Electrical Contractors and Other Wiring Installation Contractors
541330 – Engineering Services

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

Includes
Bar Size Shapes (under 3 inches); Metal Piles and Piling; Angles; Channels; Tees; Zees.

Excludes
Plate, Sheet and Strip Materials (FSC 9515).

Notes
This class contains bulk material only. Specially designed items should be placed in a more appropriate class. This class includes items usually used in building, bridge and similar construction, such as, I beams, angles, and the like.

Possible NAICS Codes
332111 – Iron and Steel Forging
332312 – Fabricated Structural Metal Manufacturing
331221 – Rolled Steel Shape Manufacturing
332710 – Machine Shops
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
332721 – Precision Turned Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
337215 – Showcase, Partition, Shelving, and Locker Manufacturing
488190 – Other Support Activities for Air Transportation

Includes
Barrels; Kegs, Shipping and Storage Pails; Collapsible Tubes; Mailing and Filing Tubes; Closures for Drums and Cans.

Possible NAICS Codes
326199 – All Other Plastics Product Manufacturing
332439 – Other Metal Container Manufacturing
321920 – Wood Container and Pallet Manufacturing
322219 – Other Paperboard Container Manufacturing
332431 – Metal Can Manufacturing
322299 – All Other Converted Paper Product Manufacturing

Description
Hardware, software, and other equipment needed for specialized High Performance Computing (HPC) systems used in solving complex computational problems through massive concurrent use of computing resources and parallel processing techniques.

Includes
Software that is licensed for use indefinitely. This can also be referred to as perpetual, indefinite, permanent, continuous, or ever lasting.

Possible NAICS Codes
334111 – Electronic Computer Manufacturing
541519 – Other Computer Related Services
334112 – Computer Storage Device Manufacturing
334118 – Computer Terminal and Other Computer Peripheral Equipment Manufacturing
334610 – Manufacturing and Reproducing Magnetic and Optical Media
423430 – Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
513210 – Software Publishers
333310 – Commercial and Service Industry Machinery Manufacturing
334210 – Telephone Apparatus Manufacturing
811210 – Electronic and Precision Equipment Repair and Maintenance