Includes
Transfer Transmission Assemblies; Clutch Assemblies; Universal Joints; Propeller Shafts; Automotive Torque Converters; Power Takeoffs.

Possible NAICS Codes
336350 – Motor Vehicle Transmission and Power Train Parts Manufacturing
333618 – Other Engine Equipment Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing
332510 – Hardware Manufacturing
336211 – Motor Vehicle Body Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333120 – Construction Machinery Manufacturing
336992 – Military Armored Vehicle, Tank, and Tank Component Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing

Includes
Turret Brakes; Clutch Brakes, Tank Turret.

Possible NAICS Codes
336390 – Other Motor Vehicle Parts Manufacturing
336330 – Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing
336340 – Motor Vehicle Brake System Manufacturing
333618 – Other Engine Equipment Manufacturing
332510 – Hardware Manufacturing
336350 – Motor Vehicle Transmission and Power Train Parts Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336211 – Motor Vehicle Body Manufacturing
333120 – Construction Machinery Manufacturing
336992 – Military Armored Vehicle, Tank, and Tank Component Manufacturing

Includes
Shafts and Shafting; Collars; Gearshafts; Ball Joints; Actuating Cylinders.

Possible NAICS Codes
333613 – Mechanical Power Transmission Equipment Manufacturing
336411 – Aircraft Manufacturing
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332510 – Hardware Manufacturing
336350 – Motor Vehicle Transmission and Power Train Parts Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336412 – Aircraft Engine and Engine Parts Manufacturing
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing

Includes
Fluid Couplings; Nonvehicular Clutches and Couplings; Horizontal Right Angle Drive Gear Units.

Excludes
Automotive Torque Converters (FSC 2520); Vehicular Power Transmission Components (FSC 2520); Rotary Aircraft Transmission Gear Units (FSC 1615).

Possible NAICS Codes
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
336350 – Motor Vehicle Transmission and Power Train Parts Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing
333241 – Food Product Machinery Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing

Includes
Attachments for Tanks, Self-propelled Weapons, and High Speed Tractors; A-frames and Winches specifically designed for truck mounting; Cranes and Crane Booms for Wrecker Trucks.

Possible NAICS Codes
336992 – Military Armored Vehicle, Tank, and Tank Component Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing
332510 – Hardware Manufacturing
333618 – Other Engine Equipment Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336320 – Motor Vehicle Electrical and Electronic Equipment Manufacturing
313210 – Broadwoven Fabric Mills
333120 – Construction Machinery Manufacturing
336999 – All Other Transportation Equipment Manufacturing

Includes
Power Transmission Chain; Matched Gear Sets.

Excludes
Reduction Gears (FSC 3010).

Possible NAICS Codes
333613 – Mechanical Power Transmission Equipment Manufacturing
333612 – Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333618 – Other Engine Equipment Manufacturing
336411 – Aircraft Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332510 – Hardware Manufacturing
336412 – Aircraft Engine and Engine Parts Manufacturing
336350 – Motor Vehicle Transmission and Power Train Parts Manufacturing

Possible NAICS Codes
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
322299 – All Other Converted Paper Product Manufacturing
332510 – Hardware Manufacturing
332112 – Nonferrous Forging
333618 – Other Engine Equipment Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336412 – Aircraft Engine and Engine Parts Manufacturing
423710 – Hardware Merchant Wholesalers
332912 – Fluid Power Valve and Hose Fitting 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
444110 – Home Centers
423710 – Hardware Merchant Wholesalers
333618 – Other Engine Equipment Manufacturing
339999 – All Other Miscellaneous Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
333120 – Construction Machinery Manufacturing

Includes
Automobile Seat Covers; Shock Absorber, Bumper; Windshield Wipers; Bumper Guards; Mirrors, Rear View and Side View; Vehicle Heaters.

Excludes
Speedometers (FSC 6680); Suspension Type Shock Absorbers (FSC 2510).

Possible NAICS Codes
336390 – Other Motor Vehicle Parts Manufacturing
336360 – Motor Vehicle Seating and Interior Trim Manufacturing
333618 – Other Engine Equipment Manufacturing
333120 – Construction Machinery Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332510 – Hardware Manufacturing
336992 – Military Armored Vehicle, Tank, and Tank Component Manufacturing
336211 – Motor Vehicle Body Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336320 – Motor Vehicle Electrical and Electronic Equipment 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
333120 – Construction Machinery Manufacturing
333618 – Other Engine Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
332510 – Hardware Manufacturing
332919 – Other Metal Valve and Pipe Fitting Manufacturing

Includes
Leaf Type Vehicular Springs; Suspension Type Shock Absorbers.

Excludes
Vehicular Hardware (FSG 53); Specialized Vehicular Furniture (FSC 2540).

Possible NAICS Codes
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
336211 – Motor Vehicle Body Manufacturing
333618 – Other Engine Equipment Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
333120 – Construction Machinery Manufacturing
332510 – Hardware Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing
336370 – Motor Vehicle Metal Stamping
336360 – Motor Vehicle Seating and Interior Trim Manufacturing
336330 – Motor Vehicle Steering and Suspension Components (except Spring) 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
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
332510 – Hardware Manufacturing
325611 – Soap and Other Detergent Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
332721 – Precision Turned Product Manufacturing
322299 – All Other Converted Paper Product Manufacturing
331529 – Other Nonferrous Metal Foundries (except Die-Casting)

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

Includes
Carburetors; Fuel Pumps; Engine Fuel Filters; Fuel Tanks; Components for all engines except Aircraft and Guided Missile Prime Moving.

Possible NAICS Codes
333618 – Other Engine Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
336390 – Other Motor Vehicle Parts Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing

Description
Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components

Possible NAICS Codes
336412 – Aircraft Engine and Engine Parts Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
333618 – Other Engine Equipment Manufacturing
811111 – General Automotive Repair
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336350 – Motor Vehicle Transmission and Power Train Parts Manufacturing
488190 – Other Support Activities for Air Transportation
333611 – Turbine and Turbine Generator Set Units Manufacturing
336611 – Ship Building and Repairing
811490 – Other Personal and Household Goods Repair and Maintenance