Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8663-1-1302 found under Hatch Special by L 3 Communications Essco Inc. The National Stock Number assigned to this part is 2040014268973, and the Federal Supply Class is 2040 Marine Hardware And Hull Items. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 8663-1-1302.