NAICS 335314

Overview

The North American Industry Classification System (NAICS) is the U.S. standard for classifying business establishments to support the collection, analysis, and publication of economic statistics. Developed by the U.S., Canada, and Mexico, NAICS replaced SIC in 1997 and is updated periodically; the current structure includes the 2022 vintage. ¹
NAICS 335314 covers establishments primarily engaged in manufacturing relays (including timing relays), motor starters and controllers, and other industrial controls and related accessories. Agencies and data users apply this industry to isolate industrial control components, distinguishing them from switchgear, process‑control instruments, and current‑carrying wiring devices, which are covered elsewhere in NAICS. ³

See also on G2X:

• G2X — NAICS 335314 overview
• G2X — NAICS 335313
• G2X — PSC 6110

What this NAICS covers

• Manufacturing relays used in industrial control applications, including timing relays. ³
• Manufacturing motor starters and motor controllers. ³
• Manufacturing motor control switches and relays. ³
• Manufacturing industrial controls (non‑process‑measurement) for machinery and equipment. ³
• Manufacturing control accessories used with industrial controls. ³
• Manufacturing control devices that are not switchgear or household/appliance controls. ³

Related NAICS and PSC codes

Type	Code	Descriptor
NAICS	335313	Switchgear and Switchboard Apparatus Manufacturing
NAICS	334513	Instruments and Related Products Mfg for Measuring, Displaying, and Controlling Industrial Process Variables
PSC	5945	Relays and Solenoids
PSC	6110	Electrical Control Equipment

NAICS relationships are sourced from Census industry descriptions and cross‑references. ³
PSC titles are per the GSA Product and Service Code Manual (April 2025 edition). ⁴

Boundary and exclusions

• Automatic environmental controls (e.g., HVAC/appliance thermostats and regulators) belong in NAICS 334512, not 335314. ³
• Instruments that measure, display, or control industrial process variables are classified in NAICS 334513, not 335314. ³
• Power distribution switchgear, switchboards, and associated panels fall under NAICS 335313, not 335314. ³
• Current‑carrying wiring devices (e.g., receptacles, snap switches) are categorized in NAICS 335931, not 335314. ³
• Power converters and UPS units are in NAICS 335999, not 335314. ³

Frequently asked questions

• What products fall under NAICS 335314?
  NAICS 335314 includes relays (including timing relays), motor starters and controllers, and other industrial controls and control accessories. It is designed for industrial control components rather than switchgear or process‑measurement instruments. ³

• How does NAICS 335314 differ from NAICS 335313?
  NAICS 335314 covers industrial control components (relays, motor starters/controllers). NAICS 335313 covers power distribution equipment like switchgear and switchboards. If the product distributes power, it’s typically [335313]; if it controls machinery operations, it’s typically [335314]. ³

• Are household or appliance controls included in NAICS 335314?
  No. Automatic environmental and appliance controls (e.g., thermostats, regulators for HVAC or appliances) are classified under NAICS 334512, not 335314. ³

• Which PSCs commonly align with NAICS 335314?
  Common PSC pairings include PSC 6110 (Electrical Control Equipment) and PSC 5945 (Relays and Solenoids), depending on whether the requirement emphasizes control equipment or specific relay/solenoid devices. Always validate PSC selection against the official PSC Manual. ⁴

• How do agencies use NAICS 335314 in procurement?
  Agencies use NAICS codes to scope solicitations, set small business size standards, and analyze markets. [335314] is applied when acquiring industrial control components, not switchgear or process‑control instruments, helping ensure accurate market segmentation and reporting. ¹

Useful resources

• Census NAICS 335314 definition and cross‑references (2022): authoritative scope notes, illustrative examples, and links to related classifications for NAICS 335314. https://www.census.gov/naics/?input=335314&year=2022&details=335314 ³
• 2022 NAICS Manual (PDF): full taxonomy, definitions, and classification rules to support consistent coding across manufacturing and related sectors. https://www.census.gov/naics/reference_files_tools/2022_NAICS_Manual.pdf ¹
• NAICS search and browse portal: the Census Bureau’s primary entry point to search codes, browse the 2022 structure, and access official tools and files. https://www.census.gov/naics/ ¹
• 2022 NAICS Index File (XLSX): keyword‑to‑code index helpful for mapping product terms (e.g., “timing relays,” “motor starters”) to the correct NAICS. https://www.census.gov/naics/reference_files_tools/2022_NAICS_Index_File.xlsx ¹
• 2022 NAICS Structure (XLSX): complete hierarchical list of 2‑ to 6‑digit 2022 NAICS codes for quick sector/industry navigation and validation. https://www.census.gov/naics/reference_files_tools/2022_NAICS_Structure.xlsx ¹
• NAICS concordances: official crosswalks between NAICS vintages (e.g., 2017↔2022) to reconcile historical data or legacy solicitations with current coding. https://www.census.gov/naics/concordances ¹
• NAICS FAQs: answers to common classification questions, update cycles, and usage guidance helpful when distinguishing industrial controls from adjacent categories. https://www.census.gov/naics/faq ¹
• Product and Service Code (PSC) Manual: official definitions for PSCs often paired with NAICS 335314, such as PSC 6110 and PSC 5945. https://www.acquisition.gov/psc-manual ⁴

References

1. U.S. Census Bureau. NAICS — North American Industry Classification System. https://www.census.gov/naics/
2. U.S. Census Bureau. 2022 NAICS definition — Relay and Industrial Control Manufacturing (335314). https://www.census.gov/naics/?input=335314&year=2022&details=335314
3. General Services Administration. Product and Service Code (PSC) Manual (April 2025). https://www.acquisition.gov/psc-manual