NAICS 336340
Overview
The North American Industry Classification System (NAICS) is the framework federal statistical programs use to categorize establishments when compiling, analyzing, and publishing data on the U.S. economy. Developed by OMB with Statistics Canada and Mexico’s INEGI, NAICS replaced SIC in 1997 and is revised on a five‑year cycle; the current edition is 2022. 1
336340 designates establishments primarily engaged in manufacturing and/or rebuilding motor vehicle brake systems and related components. Federal statistical programs (e.g., the Economic Census) report on this industry using the 2022 NAICS basis as programs transition to the current vintage. 2
What this NAICS covers
- Manufacturing complete motor vehicle brake systems and assemblies (hydraulic, pneumatic) for automotive, truck, and bus applications. 3
- Rebuilding motor vehicle brake systems and components. 3
- Producing brake cylinders (master and wheel) for motor vehicles. 3
- Producing brake drums for motor vehicles. 3
- Manufacturing brake pads and shoes for automotive, truck, and bus use. 3
- Manufacturing brake hose assemblies (with fittings) for motor vehicles. 3
- Producing brake calipers for automotive, truck, and bus applications. 3
Related NAICS and PSC codes
| Type | Code | Descriptor |
|---|---|---|
| NAICS | 336330 | Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing |
| NAICS | 336350 | Motor Vehicle Transmission and Power Train Parts Manufacturing |
| NAICS | 336390 | Other Motor Vehicle Parts Manufacturing |
| PSC | 2530 | Vehicular Brake, Steering, Axle, Wheel, and Track Components 4 |
Industry scope and cross‑references (official)
- Included: establishments making or rebuilding motor vehicle brake systems and components (e.g., master/wheel cylinders, drums, pads/shoes, calipers, brake hose assemblies). 3
- Excluded and classified elsewhere per NAICS cross‑references: springs (NAICS 33261); rubber/plastic hoses and belts without fittings (NAICS 326220); steering/suspension components (NAICS 336330); transmission and power‑train parts (NAICS 336350); other motor vehicle parts not elsewhere classified (NAICS 336390). 3
Small business size standard (SBA)
The SBA small business size standard for NAICS 336340 is 1,250 employees. This employee‑based standard is effective March 17, 2023, per SBA’s Table of Small Business Size Standards matched to NAICS. 5
Frequently asked questions
-
What activities fall under NAICS 336340?
Establishments that manufacture and/or rebuild motor vehicle brake systems and related parts—such as master and wheel cylinders, drums, pads and shoes, calipers, and brake hose assemblies—are included. The scope covers automotive, truck, and bus applications. 3 -
How is 336340 different from 336390 and 336330?
336340 is specific to brake systems and components. 336390 covers other motor vehicle parts not classified elsewhere (e.g., exhaust, radiators, wheels), while 336330 covers steering and suspension components (except springs). 3 -
Are brake system rebuilding services included in 336340?
Yes. The industry definition explicitly includes establishments primarily engaged in manufacturing and/or rebuilding motor vehicle brake systems and related components. 3 -
What PSCs commonly align with motor vehicle brake components?
PSC 2530 (“Vehicular Brake, Steering, Axle, Wheel, and Track Components”) is the primary PSC class encompassing vehicular brake components used in federal procurement reporting. 4 -
What is the small business size standard for 336340 set‑asides?
SBA’s current size standard for NAICS 336340 is 1,250 employees. This applies across SBA programs for employee‑based manufacturing industries, effective March 17, 2023. 5
Useful resources
- Census: NAICS Codes & Understanding Industry Classification Systems (2022 guidance). 1
- Census: Implementation of the 2022 NAICS (timeline and adoption across programs). 2
- Census: NAICS 2022 industry details for 336340 (official definition and examples). 3
- SBA: Table of Small Business Size Standards (effective March 17, 2023). 5
References
- U.S. Census Bureau — NAICS Codes & Understanding Industry Classification Systems (2022 guidance). https://www.census.gov/programs-surveys/economic-census/year/2022/technical-documentation/code-lists/understanding-naics-redirect.html
- U.S. Census Bureau — Implementation of the 2022 NAICS (timeline and adoption across programs). https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html
- U.S. Census Bureau — NAICS 2022 industry details for 336340. https://www.census.gov/naics/?input=336340&year=2022&details=336340
- GSA Acquisition.gov — Product and Service Code Manual (April 2025): Group 25 and PSC 2530 descriptor. https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf
- U.S. Small Business Administration — Table of Small Business Size Standards (effective March 17, 2023), NAICS 336340 = 1,250 employees. https://www.sba.gov/sites/default/files/2023-06/Table%20of%20Size%20Standards_Effective%20March%2017%2C%202023%20%282%29.pdf
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