Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RR1003-1 found under Ring Retaining by Bae Systems Information And Electronic Systems Integration Inc. The National Stock Number assigned to this part is 5325005307722, 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 RR1003-1.