Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC00641-6024-10 found under Fentanyl Citrate In by West Ward Pharmaceutical Corp. The National Stock Number assigned to this part is 6505010104170, 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 NDC00641-6024-10.