Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC00121-0727-16 found under Ranitidine Oral Sol by Pharmaceutical Associates Inc. The National Stock Number assigned to this part is 6505013122953, 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 NDC00121-0727-16.