Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1257AASY1922 found under Switch Drive Subass by I T E Imperial Corp. The National Stock Number assigned to this part is 5930004380538, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1257AASY1922.