Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8663-A-102 found under by L 3 Communications Essco Inc. The National Stock Number assigned to this part is 5850014268970, and the Federal Supply Class is 5850 Visible And Invisible Light Communication Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 8663-A-102.