Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5 9270 60 found under Demeclocycline Hydr by American Cyanamid Co. The National Stock Number assigned to this part is 6505002719091, 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 5 9270 60.