Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R5571-6KE20 found under Rivet Solid by Precision Form Rivet Inc. The National Stock Number assigned to this part is 5320012516407, and the Federal Supply Class is 5320 Rivets. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R5571-6KE20.