The lexicon of the top500 ( The Encyclopedia for Classification Codes ) explains the codes and definitions in the world of economical classifications.
NAICS Code 4413 Automotive Parts, Accessories, and Tire Stores
The NAICS Code 4413 is described as
Automotive Parts, Accessories, and Tire Stores It belongs to the code group
NAICS Code 441 Motor Vehicle and Parts Dealers
To this Code "4413" belongs the sub codes
NAICS Code 44131: Automotive Parts and Accessories Stores