Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FB6000A OPT-6004 6005 6006 found under Analyzer Digital Data Electronic by Acterna Llc. The National Stock Number assigned to this part is 6625014968520, 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 FB6000A OPT-6004 6005 6006.