Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GC40-1-500-IN found under by Aisi Steels Inc. The National Stock Number assigned to this part is 9510013104026, and the Federal Supply Class is 9510 Bars And Rods. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GC40-1-500-IN.