Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 22163ITEM 139 found under Switchpressure by Rix Industries. The National Stock Number assigned to this part is 5930016880687, 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 22163ITEM 139.