Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number URA0240 L-400 found under Amplifier Electroni by Herley Industries Inc. The National Stock Number assigned to this part is 5996013849562, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like URA0240 L-400.