Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C4391S14-37 found under Switch Thermostatic by Texas Instruments Incorporated. The National Stock Number assigned to this part is 5930009842186, 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 C4391S14-37.