Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6028-30 found under Bottle Screw Cap by Cole Parmer Instrument Co. The National Stock Number assigned to this part is 8125012295506, and the Federal Supply Class is 8125 Bottles And Jars. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6028-30.