Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N-821-065 found under Plate Retaining Sea by Hydro Line Mfg Co. The National Stock Number assigned to this part is 5340013261017, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like N-821-065.