Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 643 0669 001 found under Nut Sleeve by Rockwell Collins Inc. The National Stock Number assigned to this part is 5310010827462, 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 643 0669 001.