Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H547-2002A-155 found under Bearingsleeve by Electric Boat Corporation. The National Stock Number assigned to this part is 3120016727214, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H547-2002A-155.