Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1TW1-3 found under Switch Toggle by Satair A S. The National Stock Number assigned to this part is 5930001166549, 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 1TW1-3.