Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AV71-019PC40 found under Washer Flat by Automatic Switch Company. The National Stock Number assigned to this part is 5310008506823, 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 AV71-019PC40.