Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CS1783-40-4PP found under Filter Band Pass by Daden Anthony Associates Inc. The National Stock Number assigned to this part is 5915013787925, 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 CS1783-40-4PP.