Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CB3503CR6-1 found under Nut Self Locking Pl by Click Bond Inc. The National Stock Number assigned to this part is 5310016299567, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CB3503CR6-1.