Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U13691 found under Flasher Thermal by Ai Tek Instruments Llc. The National Stock Number assigned to this part is 5945001913891, and the Federal Supply Class is 5945 Relays And Solenoids. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U13691.