North American Industry Classification System (NAICS) 2002
31-33 - Manufacturing
This sector comprises establishments primarily engaged in the physical or chemical transformation of materials or substances into new products. These products may be finished, in the sense that they are ready to be used or consumed, or semi-finished, in the sense of becoming a raw material for an establishment to use in further manufacturing. Related activities, such as the assembly of the component parts of manufactured goods; the blending of materials; and the finishing of manufactured products by dyeing, heat-treating, plating and similar operations are also treated as manufacturing activities. Manufacturing establishments are known by a variety of trade designations, such as plants, factories or mills.
Manufacturing establishments may own the materials which they transform or they may transform materials owned by other establishments. Manufacturing may take place in factories or in workers' homes, using either machinery or hand tools.
Certain activities involving the transformation of goods are classified in other sectors. Some examples are post-harvest activities of agricultural establishments, such as crop drying; logging; the beneficiating of mineral ores; the production of structures by construction establishments; and various activities conducted by retailers, such as meat cutting and the assembly of products such as bicycles and computers.
332 - Fabricated Metal Product Manufacturing
This subsector comprises establishments primarily engaged in forging, stamping, forming, turning and joining processes to produce ferrous and non-ferrous metal products, such as cutlery and hand tools, architectural and structural metal products, boilers, tanks and shipping containers, hardware, spring and wire products, turned products, and bolts, nuts and screws.
Exclusion(s):
Establishments primarily engaged in:
- manufacturing metal products by rolling, drawing, extruding, alloying or casting (See 331 Primary Metal Manufacturing)
3327 - Machine Shops, Turned Product, and Screw, Nut and Bolt Manufacturing
This industry group comprises establishments primarily engaged in operating machine shops, which use machine tools, such as lathes and automatic screw machines, for turning, boring, threading or otherwise shaping metal, to manufacture parts, other than complete machines, for the trade. Shops that set up to do production runs of industrial fasteners, such as bolts, nuts and screws, are included.
33271 - Machine Shops
This industry comprises establishments primarily engaged in operating machine tools, such as lathes (including computer numerically controlled), automatic screw machines, and machines for boring, grinding, milling and otherwise working metal, to produce machine parts and equipment, other than complete machines, for the trade. Machine shops providing custom and repair services are included.
33272 - Turned Product and Screw, Nut and Bolt Manufacturing
This industry comprises establishments primarily engaged in turning, facing, forming, parting, boring, threading and knurling metal on machine tools or lathes with machine-held cutting tools, to manufacture precision turned products. Establishments primarily engaged in manufacturing metal fasteners, such as nuts, bolts, rivets and washers, are included.
Exclusion(s):
Establishments primarily engaged in:
- manufacturing flat washers (See 33211 Forging and Stamping)
- Date modified: