Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B18.24A-2006 found under Screw Cap Hexagon Head by American National Standards Inst. The National Stock Number assigned to this part is 5305008213869, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B18.24A-2006.