Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AR2-115 found under Insert Ball Bearing by Morse Industrial Corp. The National Stock Number assigned to this part is 3120004408792, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AR2-115.