NAICS 332913

Overview

The North American Industry Classification System (NAICS) is the framework U.S. statistical agencies use to classify business establishments so they can collect, analyze, and publish data on the U.S. economy. Developed under OMB with Canada and Mexico, it replaced SIC in 1997 and is maintained in five-year updates; current Census data are being released on the 2022 NAICS basis. ¹

NAICS 332913 covers establishments primarily engaged in manufacturing metal and plastics plumbing fixture fittings and trim, including faucets, flush valves, and shower heads. Cross-references place metal shower rods in 332999 and items like fire or lawn hose nozzles, water traps, and couplings in 332919. Federal statistical programs (e.g., the Economic Census) apply this industry code when tabulating manufacturing activity. ²

See also on G2X:

• G2X — NAICS 332913 overview
• G2X — NAICS 332919 overview
• G2X — NAICS 332999 overview

What this NAICS covers

• Manufacture of metal and plastic plumbing fixture fittings and trim. ²
• Production of faucets intended for plumbing fixtures. ²
• Production of flush valves used in plumbing fixtures. ²
• Manufacture of shower heads and related trim parts. ²
• Integrated fabrication/assembly of plumbing fixture fittings from metal or plastics inputs. ²
• Plumbing trim sets packaged for separate sale as fittings and trim. ²

Related NAICS and PSC codes

Type	Code	Descriptor
NAICS	332919	Other Metal Valve and Pipe Fitting Manufacturing. 2
NAICS	332999	All Other Miscellaneous Fabricated Metal Product Manufacturing. 2
PSC	4510	Plumbing Fixtures and Accessories. 3
PSC	4730	Fittings and Specialties; Hose, Pipe, and Tube. 3

Cross-references and exclusions

• Metal shower rods are classified in NAICS 332999, not in 332913. ²
• Fire hose nozzles, lawn hose nozzles, water traps, and couplings are classified in NAICS 332919. ²
• Assembling plastics components into plumbing fixture fittings remains within NAICS 332913 per the industry definition. ²

SBA small business size standard (procurement context)

For NAICS 332913, the SBA small business size standard is 1,000 employees (effective March 17, 2023). Contracting officials apply SBA’s table of size standards when designating small business status for acquisitions. ⁴

2022 NAICS implementation status

Census Bureau programs are transitioning publications to the 2022 NAICS vintage; First Look Economic Census data began on the 2022 basis in January 2024, with broader adoption continuing through 2027. ⁵

Frequently asked questions

• What does NAICS 332913 include?
  Establishments that manufacture metal and plastics plumbing fixture fittings and trim. Explicit examples are faucets, flush valves, and shower heads. The definition also covers integrated assembly of fittings and trim, while cross-references direct non-plumbing items to other NAICS where appropriate. ²

• How is NAICS 332913 different from 332919?
  NAICS 332913 focuses on plumbing fixture fittings and trim. NAICS 332919 covers “other metal valve and pipe fitting” items such as fire or lawn hose nozzles, water traps, and couplings—specifically excluded from 332913’s scope. ²

• Are metal shower rods part of NAICS 332913?
  No. Metal shower rods are classified in NAICS 332999 under “All Other Miscellaneous Fabricated Metal Product Manufacturing.” They are expressly excluded from 332913, which covers fittings and trim for plumbing fixtures (e.g., faucets, valves, and shower heads). ²

• What is the SBA small business size standard for NAICS 332913?
  The size standard is 1,000 employees for this manufacturing industry. Agencies use the SBA table to determine eligibility for small business set-asides and reporting. Check solicitations for the assigned NAICS and verify your headcount against the table in effect at the time of offer. ⁴

• How is NAICS used relative to PSC codes in federal buying?
  NAICS classifies industries for statistical use and is referenced on acquisition planning documents and award notices. PSC codes categorize the products or services bought; for example, plumbing fixtures and accessories often use PSC 4510. The industry code for plumbing fixture fittings is NAICS 332913. ¹

Useful resources

• G2X — NAICS 332913 overview
• U.S. Census Bureau — Economic Census: NAICS Codes & Understanding Industry Classification Systems. ¹
• U.S. Census Bureau — Manufacturing page for NAICS 332913 definition and cross-references. ²
• U.S. Small Business Administration — Table of Small Business Size Standards (effective March 17, 2023). ⁴
• U.S. Census Bureau — Implementation of the 2022 NAICS (timeline and adoption). ⁵

References

1. U.S. Census Bureau. NAICS — North American Industry Classification System. https://www.census.gov/naics/
2. U.S. Census Bureau. NAICS 2022 Search — 332913 Plumbing Fixture Fitting and Trim Manufacturing. https://www.census.gov/naics/?input=332913&year=2022
3. Acquisition.gov. Product and Service Codes (PSC) Manual. https://www.acquisition.gov/psc-manual
4. U.S. Small Business Administration. Table of Small Business Size Standards (effective March 17, 2023). https://www.sba.gov/sites/default/files/2023-06/Table%20of%20Size%20Standards_Effective%20March%2017%2C%202023%20%282%29.pdf
5. U.S. Census Bureau. The Census Bureau’s Implementation of the 2022 NAICS. https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html