Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C4391N7-233 found under Switch Thermostatic by Texas Instruments Incorporated. The National Stock Number assigned to this part is 5930008028378, 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 C4391N7-233.