Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 604D2-34-30 found under Fastener Special by Alcoa Fastening Systems Ltd. The National Stock Number assigned to this part is 5342009154685, 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 604D2-34-30.