Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC00641 1118 34 found under Fentanyl Citrate In by Elkins Sinn Inc. The National Stock Number assigned to this part is 6505011331261, 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 1118 34.