Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC51079-0560-20 found under Tolbutamide Tablets Usp by Mylan Institutional Llc. The National Stock Number assigned to this part is 6505001319268, 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 NDC51079-0560-20.