Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5053M42G01 found under Ring Augmenter by C F Roark Welding And Engineering. The National Stock Number assigned to this part is 2840011806125, and the Federal Supply Class is 2840 Gas Turbines And Jet Engines Aircraft Prime Moving And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5053M42G01.