Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AA51186-2A2C found under File Rotary by Federal Commercial Item Description. The National Stock Number assigned to this part is 3455000212416, and the Federal Supply Class is 3455 Cutting Tools For Machine Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AA51186-2A2C.