Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 123CSM51841-11 found under Ring Torque Tube Inboard Rudder by Abm Inc. The National Stock Number assigned to this part is 5365000011841, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 123CSM51841-11.