Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5672340-21 found under Microcircuit Assemb by Raytheon Service Co Logistics Su. The National Stock Number assigned to this part is 5962011062946, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5672340-21.