Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3TX4404-0A found under Switch Push by Siemens Corp. The National Stock Number assigned to this part is 5930123429374, 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 3TX4404-0A.