Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A1231545 found under Filter Radio Freque by Thales Avionics Sa. The National Stock Number assigned to this part is 5915013309157, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A1231545.