Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 313-4378 found under Disk Nonflexible by Dell Marketing Lp. The National Stock Number assigned to this part is 7045016018401, and the Federal Supply Class is 7045 Adp Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 313-4378.