Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11992 found under Switch Radio Freque by L3 Communications Corp. The National Stock Number assigned to this part is 5985008195335, and the Federal Supply Class is 5985 Antennas Waveguides And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 11992.