Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 00781E123-1 found under Liner Bearing by Dresser Rand Co. The National Stock Number assigned to this part is 3120004831443, 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 00781E123-1.