NAICS 334517

Overview

The North American Industry Classification System (NAICS) is the federal standard for classifying business establishments to support collection, analysis, and publication of U.S. economic statistics. Developed under the Office of Management and Budget and adopted in 1997, NAICS was created jointly by the U.S. Economic Classification Policy Committee, Statistics Canada, and Mexico’s INEGI to enable comparability of business statistics across North America. The current vintage is 2022. ¹

334517 — Irradiation Apparatus Manufacturing — covers establishments primarily engaged in manufacturing irradiation apparatus and tubes used for medical diagnosis and therapy, industrial applications, and research and scientific evaluation. Irradiation may include beta-rays, gamma-rays, X‑rays, or other ionizing radiation. This NAICS is used in statistical programs and as a reference point in procurement market research and industry classification. ²

See also on G2X:

• G2X — NAICS 334517 overview: https://app.g2xchange.com/naics/334517
• Related NAICS: 334510
• Related PSC: 6525

What this NAICS covers

• Manufacture of irradiation apparatus for medical diagnostic imaging using ionizing radiation (for example, X‑ray). ²
• Manufacture of irradiation apparatus for medical therapeutic uses (for example, radiation therapy/oncology devices). ²
• Manufacture of industrial irradiation and radiography equipment for non‑medical applications. ²
• Manufacture of research and scientific irradiation equipment used in laboratories and evaluation settings. ²
• Manufacture of X‑ray and other irradiation tubes integral to these systems. ²
• Systems producing beta, gamma, X‑ray, or other ionizing radiation as the irradiation source. ²

Related NAICS and PSC codes

NAICS relationships are based on Census cross‑references. ²
PSC descriptors are drawn from the official Product and Service Code Manual. ³

Type	Code	Descriptor
NAICS	334510	Electromedical and Electrotherapeutic Apparatus Manufacturing
NAICS	339112	Surgical and Medical Instrument Manufacturing
PSC	6525	Imaging Equipment and Supplies: Medical, Dental, Veterinary
PSC	6640	Laboratory Equipment and Supplies

Boundary notes (inclusions/exclusions)

• Medical irradiation apparatus (e.g., X‑ray and radiation therapy systems) are included in 334517; other electromedical and electrotherapeutic devices are in 334510. ²
• Surgical, medical, ophthalmic, and veterinary instruments and apparatus (except electromedical/electrotherapeutic and irradiation apparatus) are classified in 339112. ²
• Instruments that measure, display, or control industrial process variables are classified in 334513, not in 334517. ²
• Nonelectrical medical and therapeutic apparatus fall in NAICS Industry Group 3391, not in 334517. ²

Frequently asked questions

• What products are covered by 334517?
  Irradiation apparatus and irradiation tubes used for medical diagnostic and therapeutic applications, as well as equipment for industrial, research, and scientific evaluation. Radiation sources include beta, gamma, X‑rays, and other ionizing radiation. ²

• Is 334517 only for medical devices?
  No. While it includes medical diagnostic and therapeutic irradiation systems, it also covers irradiation equipment for industrial and research/scientific uses. The scope is defined by the function (ionizing radiation) rather than the end market alone. ²

• How does 334517 differ from 334510?
  334510 covers electromedical and electrotherapeutic apparatus broadly (e.g., MRI, ultrasound, pacemakers). Medical irradiation apparatus (e.g., X‑ray and radiation therapy systems) are specifically assigned to 334517. ²

• Did the definition of 334517 change in 2022?
  Change history at the 6‑digit code level is not detailed on the public NAICS site. Not specified by official sources ¹.

• Which PSCs commonly align with irradiation apparatus purchases?
  Agencies often use imaging‑related PSCs. The PSC Manual defines 6525 as “Imaging Equipment and Supplies: Medical, Dental, Veterinary”; laboratory‑focused buys may use 6640. PSCs classify what is bought, while NAICS classifies the supplier’s industry. ³

Useful resources

• U.S. Census Bureau — NAICS main site and 2022 structure. ¹
• U.S. Census Bureau — Manufacturing (NAICS 31–33) 2022 Economic Census resources. ⁴
• Acquisition.gov — Product and Service Code Manual. ³

References

1. U.S. Census Bureau, NAICS main page and introduction: https://www.census.gov/naics
2. U.S. Census Bureau, NAICS 2022 detail for 334517: https://www.census.gov/naics/?input=334517&year=2022&details=334517
3. Acquisition.gov, Product and Service Code Manual: https://www.acquisition.gov/psc-manual
4. U.S. Census Bureau, 2022 Economic Census — Manufacturing (NAICS 31–33): https://www.census.gov/data/tables/2022/econ/economic-census/naics-sector-31-33.html