Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 481B-WAS-056VE found under Washer Flat by Apw Electronics Ltd. The National Stock Number assigned to this part is 5310997983523, 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 481B-WAS-056VE.