Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GM109M found under Nut Self Locking Pl by Alcoa Fastening Systems Ltd. The National Stock Number assigned to this part is 5310142220074, 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 GM109M.