Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4SX3-T found under Switch Sensitive by Honeywell Aerospace. The National Stock Number assigned to this part is 5930011430129, 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 4SX3-T.