Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4010085 found under Nut Self Locking Ex by Turbo Power Marine System. The National Stock Number assigned to this part is 5310003957841, 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 4010085.