Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A399061757 found under by Selex Es Ltd. The National Stock Number assigned to this part is 3110012352874, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A399061757.