NAICS 3399 is the North American Industry Classification System code for Other Miscellaneous Manufacturing, a industry group in the Miscellaneous Manufacturing subsector (339) of the Manufacturing sector (31-33). It divides into 6 more specific codes, including Jewelry and Silverware Manufacturing (339910), Sporting and Athletic Goods Manufacturing (339920) and Doll, Toy, and Game Manufacturing (339930).
NAICS 3399 is the code for Other Miscellaneous Manufacturing, a industry group in the North American Industry Classification System (NAICS 2022), under 339 (Miscellaneous Manufacturing). It has 6 more specific codes: 339910, 339920, 339930 and 339940 and others.
The parent of NAICS 3399 is 339, Miscellaneous Manufacturing. Every company under 3399 is also counted under 339.