Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QS1190-2 found under Switch Thermostatic by Quick Start Products And Solutions. The National Stock Number assigned to this part is 5930011557762, 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 QS1190-2.