Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MIS-20044 18 found under Filter Band Pass by Coleman Microwave Co. The National Stock Number assigned to this part is 5915014854191, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MIS-20044 18.