Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 72-6971-350 found under Washer Key by Fairbanks Morse Llc. The National Stock Number assigned to this part is 5310001860959, 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 72-6971-350.