Luke Air Force Base anticipates issuing a contract under a Total Small Business Set-aside. The North American Industry Classification Systems (NAICS) Code is 324191. The size standard for this NAICS i... Luke Air Force Base anticipates issuing a contract under a Total Small Business Set-aside. The North American Industry Classification Systems (NAICS) Code is 324191. The size standard for this NAICS is 900 employees. The formal solicitation will be posted within 7 days of this pre-solicitation notice.