Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S2409-3140816 found under Ring Bearing Perisc by L3 Communications Corp. The National Stock Number assigned to this part is 3110003693929, 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 S2409-3140816.