For those of you needing a comma separated list of 2002 NAICS codes in a text (.txt) file, here you go!
ABOUT NAICS Codes
NAICS (pronounced naikes like makes) stands for the North American Industry Classification System. It’s a series of codes that identify industries. The government as well as data service providers use NAICS to categorize companies by the type of work they do.
Original Data Source: http://www.census.gov/epcd/naics02/naicod02.txt
[...] to categorize companies by the type of work they do. SIC codes were supposed to be replaced by NAICS codes. However, many companies–especially data service providers–have not yet switched [...]