Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1E10203 ITEM 35 found under Ring Retaining by Vacco Industries. The National Stock Number assigned to this part is 5325016419309, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S1E10203 ITEM 35.