Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 405S291201903-1 found under Adapter Assy Contro by L 3 Communications Mas Canada Inc. The National Stock Number assigned to this part is 1680012405406, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 405S291201903-1.