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
339950 – Sign Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333120 – Construction Machinery Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing

Excludes
Packing and Gasket Material (FSC 5330).

Possible NAICS Codes
339991 – Gasket, Packing, and Sealing Device Manufacturing
333618 – Other Engine Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
332618 – Other Fabricated Wire Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333120 – Construction Machinery 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
339991 – Gasket, Packing, and Sealing Device Manufacturing
336411 – Aircraft Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
541519 – Other Computer Related Services
334417 – Electronic Connector Manufacturing

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
326220 – Rubber and Plastics Hoses and Belting Manufacturing
488190 – Other Support Activities for Air Transportation
333120 – Construction 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
423710 – Hardware Merchant Wholesalers
444110 – Home Centers
339999 – All Other Miscellaneous Manufacturing
333618 – Other Engine Equipment Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336411 – Aircraft Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333120 – Construction Machinery Manufacturing

Excludes
Laboratory Jet Pumps (FSG 65 and 66).

Possible NAICS Codes
333996 – Fluid Power Pump and Motor Manufacturing
333914 – Measuring, Dispensing, and Other Pumping Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
326299 – All Other Rubber Product Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333991 – Power-Driven Handtool Manufacturing
333120 – Construction Machinery Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing

Includes
Fire Resistant Compounds; Water Resistant Compounds; Weather Resistant Compounds; Belt Dressing; Antiseize Compounds; Caulking and Glazing Compounds; Putties.

Excludes
Food Preservative Compounds.

Possible NAICS Codes
332312 – Fabricated Structural Metal Manufacturing
325520 – Adhesive Manufacturing
321114 – Wood Preservation
325510 – Paint and Coating Manufacturing
339113 – Surgical Appliance and Supplies Manufacturing

Includes
Locknuts; Eye Nuts; Plain Nuts; Castellated Nuts; Wing Nuts; Plate Nuts; Push on Nuts; Concave and Convex Washers; Flat Washers; Keyed Washers; Lock Washers; Shouldered Washers; Split Washers.

Excludes
Bearing Thrust Washers (FSC 3120); Shims (FSC 5365); Ring Spacers (FSC 5365); Plate Spacers (FSC 5365); Lock Rings (FSC 5365).

Notes
Nuts and washers, including specially designed, are to be classified in this FSC. a. Nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. Washers are a perforated piece of metal, leather, or other materials of various shapes or forms. They are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.

Possible NAICS Codes
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
336411 – Aircraft Manufacturing
332510 – Hardware Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
325611 – Soap and Other Detergent Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
322299 – All Other Converted Paper Product Manufacturing
332721 – Precision Turned Product Manufacturing
331529 – Other Nonferrous Metal Foundries (except Die-Casting)

Includes
Eyelets; Grommets; Aircraft Cowling Fasteners; Textile Fasteners; Retaining Rings; Threaded Inserts.

Possible NAICS Codes
332510 – Hardware Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333618 – Other Engine Equipment Manufacturing
332119 – Metal Crown, Closure, and Other Metal Stamping (except Automotive)
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
332613 – Spring Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
331315 – Aluminum Sheet, Plate, and Foil Manufacturing
332912 – Fluid Power Valve and Hose Fitting Manufacturing

Includes
Dowel Pins, Split Pins; Spikes; Tacks; Nonoffice Type Staples; Machine Keys; Brads; Shouldered Pins; Cotter Pins; Nails.

Excludes
Shafts (FSC 3040); Lock Keys (FSC 5340).

Notes
Nails, machine keys, and pins, including specially designed, will be classified in this FSC. a. Nails are slender, usually pointed fasteners with a head, and designed for insertion by impact. b. Machine keys are items generally inserted between two items, usually in a groove, to prevent relative rotation, e.g., shaft and hub, c. Pins are cylindrical items of various materials used to align/attach two or more parts together and may allow for angular movement.

Possible NAICS Codes
332510 – Hardware Manufacturing
332618 – Other Fabricated Wire Product Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336411 – Aircraft Manufacturing
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
444140 – Hardware Retailers
332111 – Iron and Steel Forging
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

Includes
Propulsion Shafts; Ship Propellers; Marine Transmissions, Reverse and Reduction Gear Type.

Excludes
Engines (FSC 2810, 2815); Turbines (FSC 2825, 2835, 2840).

Possible NAICS Codes
333618 – Other Engine Equipment Manufacturing
336415 – Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing
336612 – Boat Building
336611 – Ship Building and Repairing
336214 – Travel Trailer and Camper Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing
331529 – Other Nonferrous Metal Foundries (except Die-Casting)
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
339991 – Gasket, Packing, and Sealing Device 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
114119 – Other Marine Fishing
332321 – Metal Window and Door Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332510 – Hardware Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
336612 – Boat Building

Includes
Cellulose Acetate and other plastics; Bars, Rods, Sheets, and Strips.

Excludes
Cable, Fiber Optic.

Possible NAICS Codes
325211 – Plastics Material and Resin Manufacturing
326199 – All Other Plastics Product Manufacturing
326112 – Plastics Packaging Film and Sheet (including Laminated) Manufacturing
326113 – Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing
326130 – Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing
336411 – Aircraft Manufacturing
326220 – Rubber and Plastics Hoses and Belting Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
326121 – Unlaminated Plastics Profile Shape Manufacturing
326111 – Plastics Bag and Pouch Manufacturing

Includes
Oil Burners; Stokers; Gas Burners.

Possible NAICS Codes
333414 – Heating Equipment (except Warm Air Furnaces) Manufacturing
238220 – Plumbing, Heating, and Air-Conditioning Contractors
339991 – Gasket, Packing, and Sealing Device Manufacturing
336411 – Aircraft Manufacturing
457210 – Fuel Dealers
332410 – Power Boiler and Heat Exchanger Manufacturing
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing

Includes
Portable Fire Escapes; Safety Nets, Nonbuoyant.

Excludes
Divers' Suits; Fixed Fire Escapes

Possible NAICS Codes
333310 – Commercial and Service Industry Machinery Manufacturing
339115 – Ophthalmic Goods Manufacturing
423830 – Industrial Machinery and Equipment Merchant Wholesalers
339113 – Surgical Appliance and Supplies Manufacturing
315990 – Apparel Accessories and Other Apparel Manufacturing
313230 – Nonwoven Fabric Mills
444140 – Hardware Retailers