Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 122A5471P1 found under Washer Lock by Mpd Inc. The National Stock Number assigned to this part is 5310006857036, 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 122A5471P1.