Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 394420 found under Washer Flat by Precision Airmotive Llc. The National Stock Number assigned to this part is 5310001488887, 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 394420.