North American Industry Classification System (NAICS) code 33291 is used by federal buyers for market research, set-aside size standards, and reporting. Official titles come from the Census Bureau NAICS structure.
Official definition
This industry comprises establishments primarily engaged in manufacturing one or more of the following metal valves: (1) industrial valves; (2) fluid power valves and hose fittings; (3) plumbing fixture fittings and trim; and (4) other metal valves and pipe fittings.
- Official title
- Metal Valve Manufacturing
- Code level
- 5
- Parent industry
- Other Fabricated Metal Product Manufacturing 3329
- Open opportunities
- 0 open · 0 active
Excluded or separately classified activities
Official Census cross-references identify activities that belong under another North American Industry Classification System (NAICS) code.
Casting iron pipe fittings and couplings without machining--are classified in Industry 33151, Ferrous Metal Foundries; and
Manufacturing fluid power cylinders and pumps--are classified in Industry 33399, All Other General Purpose Machinery Manufacturing;
Manufacturing intake and exhaust valves for internal combustion engines--are classified in Industry 33631, Motor Vehicle Gasoline Engine and Engine Parts Manufacturing;
Manufacturing metal shower rods and metal couplings from purchased metal pipe--are classified in Industry 33299, All Other Fabricated Metal Product Manufacturing;
Manufacturing plastics aerosol spray nozzles--are classified in Industry 32619, Other Plastics Product Manufacturing;
Manufacturing plastics pipe fittings and couplings--are classified in Industry 32612, Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing.
Source and edition
2022 NAICS Manual definition and reference material from the U.S. Census Bureau.