Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3803-50525-40-4 found under Divider Power Radio Frequency by Astrium Ltd. The National Stock Number assigned to this part is 6625013331127, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3803-50525-40-4.