Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC00088-1797-90 found under Diltiazem Extended by Sanofi Aventis Us Inc. The National Stock Number assigned to this part is 6505013630020, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NDC00088-1797-90.