Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 56-1340-00 found under Amplifier Subassemb by Lds Test And Measurement Llc. The National Stock Number assigned to this part is 5996012985430, 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 56-1340-00.