Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13221E4784 found under by Cecom Lr Center. The National Stock Number assigned to this part is 3895002238840, and the Federal Supply Class is 3895 Miscellaneous Construction Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 13221E4784.