Includes
General Purpose Oil Grease, Air, Liquid, Gas, and chemical Seals; Oakum; Prefabricated Gaskets and Seals designed for a single specific application.

Excludes
O-Rings (FSC 5331); Bulk material items, such as; Rubber, Cork, and Asbestos Sheets and Strips (FSG 93); Liquid Gasket Materials (RTV), Permatex, etc.) (FSG 80); RFI and EMI Seals and Gaskets (FSC 5999), and all Seal Retainers.

Notes
This FSC includes only seals and gaskets designed for standard use. Seals, gaskets and packing are made from materials specifically designed and constructed to resist deterioration from the action of heat, gas, chemicals, liquids, and used to fill a cavity and create a tight seal. Similar materials used to make seals, gaskets and packing are available in bulk form, refer to FSG 93, FSG 80, and FSG 83.

Possible NAICS Codes
339991 – Gasket, Packing, and Sealing Device Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
336411 – Aircraft Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
339950 – Sign Manufacturing
332510 – Hardware Manufacturing
424490 – Other Grocery and Related Products Merchant Wholesalers

Includes
Natural and Synthetic Rubber Fabricated Materials, such as Rubber Sheets, Structural Rubber Shapes, Strips.

Possible NAICS Codes
326299 – All Other Rubber Product Manufacturing
339991 – Gasket, Packing, and Sealing Device Manufacturing
325212 – Synthetic Rubber Manufacturing
326291 – Rubber Product Manufacturing for Mechanical Use
488190 – Other Support Activities for Air Transportation
326220 – Rubber and Plastics Hoses and Belting Manufacturing
333120 – Construction Machinery Manufacturing
325211 – Plastics Material and Resin Manufacturing

Includes
Air Duct, Metallic, Nonmetallic, and Textile Fiber Hoses and their assemblies; Flexible Tubing and their assemblies.

Excludes
Conduit and their assemblies (FSC 5975); Laboratory Tubes (FSC 6640); Medical and Surgical Tubes (FSC 6515); Rigid Tubing and their assemblies (FSC 4710).

Possible NAICS Codes
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing
333618 – Other Engine Equipment Manufacturing
333120 – Construction Machinery Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336411 – Aircraft Manufacturing
332510 – Hardware Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332919 – Other Metal Valve and Pipe Fitting Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories 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

Description
Bushings, Rings, Shims and Spacers

Includes
Externally Threaded Rings; Keyed and Serrated Lock Rings; Dee Rings; Instrument Retaining Rings; Shim Sets and Assortments; Plate Spacers; Ring Spacers; Sleeve Spacers; Stepped Spacers; Spacer Sets and Assortments; Sleeve Bushings; Machine Threaded Bushings; Machine Threaded Plugs.

Excludes
Sleeve Bearings (FSC 3120); Pipe Threaded Plugs (FSC 4730); Piston Rings (FSC 2520, 2805, 2810, 2815, 2825, 2990, 3040, 4310 and 4820); Retaining Rings (FSC 5325); Shim Stock (FSC 9515).

Notes
All items, including specially designed, will be classified in this FSC. a. A bushing is cylindrical in shape, hollow, and designed primarily to be inserted into a hole to reduce the effective inside diameter of the hole, and to protect the body structure about the hole, and to protect the body structure about the hole from damage resulting from stress, strain, and vibration. b. A ring is cylindrical in shape, usually flat with a center hole. Rings are multi-applicational. See specific item name for designated usage. c. A shim is a thin, sometimes tapered, piece of material used to fill in space between things. See specific item name for dimensional parameters. d. A spacer is a device for holding two members at a given distance from each other.

Possible NAICS Codes
332510 – Hardware Manufacturing
336411 – Aircraft Manufacturing
332119 – Metal Crown, Closure, and Other Metal Stamping (except Automotive)
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332439 – Other Metal Container 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
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

Description
Other Professional Services

Possible NAICS Codes
493190 – Other Warehousing and Storage
541611 – Administrative Management and General Management Consulting Services
541990 – All Other Professional, Scientific, and Technical Services
541690 – Other Scientific and Technical Consulting Services
711510 – Independent Artists, Writers, and Performers
541330 – Engineering Services
541519 – Other Computer Related Services
611430 – Professional and Management Development Training
721110 – Hotels (except Casino Hotels) and Motels
561320 – Temporary Help Services

Includes
Plasticators; Presses; Synthetic Rubber Working Machinery; Tread Extruding Machinery; Vulcanizing Machinery.

Excludes
Protective Covering Laminating Presses; Tire Maintenance and Repair Equipment.

Possible NAICS Codes
333248 – All Other Industrial Machinery Manufacturing
326291 – Rubber Product Manufacturing for Mechanical Use
326199 – All Other Plastics Product Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing
513210 – Software Publishers
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
339940 – Office Supplies (except Paper) Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
333515 – Cutting Tool and Machine Tool Accessory Manufacturing

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
Compressor and Turbine Rotors; Blades; Combustion Chamber; Accessory Gear Box; Afterburner; Exhaust Cone; Reservoirs, Hydraulic; Tank, Oil.

Excludes
Oil, Air, Anti-icing, and Hydraulic Regulators, Valves, and Pumps specially designed for Gas Turbines and Jet Engines (FSC 2995); Control Assemblies, Push-Pull (FSC 2995); Engine Mounted Control Assemblies (FSC 2995); Fuel System Components (FSC 2915); Engine Electrical System Components (FSC 2925); Engine Cooling System Components (FSC 2935); Engine Air/Oil Cleaner/Filter/Strainers (FSC 2945).

Notes
Engines and Components classified in this FSC are intended for use as/on aircraft and/or guided missile prime movers.

Possible NAICS Codes
336412 – Aircraft Engine and Engine Parts Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
314999 – All Other Miscellaneous Textile Product Mills
332510 – Hardware Manufacturing
336411 – Aircraft Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
332991 – Ball and Roller Bearing Manufacturing
332996 – Fabricated Pipe and Pipe Fitting Manufacturing
488190 – Other Support Activities for Air Transportation

Includes
Control Assemblies, Push-Pull; Brace, Positioning Cargo Ramp Stowed on Board; Cockpit Mounted Control Quadrants; Actuators, Electromechanical and Mechanical; Ventilators; Relief Tubes; Map Holders; Aerial Glider Towing Accessories Attached to Aircraft; Belts, Safety and Lap; Harness, Shoulder and Safety; Litter Attaching Supports; Electric Windshield Wipers; Aircraft Onboard Inert Gas Generators; Aircraft Furniture; Aircraft Mounted Winches and Hoists; In-Flight Refueling System Components, including Fuel Components; Aircraft Curtains; Cable Tension Regulators; Sun Visors; Rear-View Mirrors; Mechanical Transmissions, Gearboxes and Constant Speed Drives Specially Designed for Aircraft.

Excludes
Engine Mounted Control Assemblies; Fitted Covers, Aircraft Pylons; Helicopter Rotor Brake System Components; Helicopter Automatic Stabilization Equipment.

Possible NAICS Codes
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
488190 – Other Support Activities for Air Transportation
336412 – Aircraft Engine and Engine Parts Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument 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

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

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