Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CRP123-4-6 found under Cap Rivet by Sps Technologies Inc. The National Stock Number assigned to this part is 5320005232565, 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 CRP123-4-6.