Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NX3R found under Washer Flat by Magnum Power Products Llc. The National Stock Number assigned to this part is 5310015497662, 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 NX3R.