The lexicon of the top500 ( The Encyclopedia for Classification Codes ) explains the codes and definitions in the world of economical classifications.
NAICS Code 4243 Apparel, Piece Goods, and Notions Merchant Wholesalers
The NAICS Code 4243 is described as
Apparel, Piece Goods, and Notions Merchant Wholesalers It belongs to the code group
NAICS Code 424 Merchant Wholesalers, Nondurable Goods