Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3213303-4 found under Filter Direct Curre by Raytheon Company. The National Stock Number assigned to this part is 5915004216810, 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 3213303-4.