Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GS20402-1 found under Positioner Control by Hamilton Sundstrand Corporation. The National Stock Number assigned to this part is 1610012665206, and the Federal Supply Class is 1610 Aircraft Propellers And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GS20402-1.