Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5717128 found under Ring Retaining Spro by Am General Llc. The National Stock Number assigned to this part is 5220016164984, and the Federal Supply Class is 5220 Inspection Gages And Precision Layout Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5717128.