Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 702004 found under Washer Lock by Smith Otis A Mfg Co. The National Stock Number assigned to this part is 5310007645694, 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 702004.