Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 548 0668 002 found under Screw Shoulder by Rockwell Collins Inc. The National Stock Number assigned to this part is 5305008943389, 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 548 0668 002.