Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ZANTAC SIR 150MG 10ML 2X280ML found under Ranitidine Oral Sol by Glaxosmithkline Llc. 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 ZANTAC SIR 150MG 10ML 2X280ML.