Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST 3390N found under Disk Drive Unit by Seagate Technology. The National Stock Number assigned to this part is 7025014240218, and the Federal Supply Class is 7025 Adp Input Output And Storage Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ST 3390N.