Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NK3604-11 found under Nut Self Locking He by Curtiss Wright Electro Mechanical Corporation Div Steam And Air Solutions. The National Stock Number assigned to this part is 5310013376627, 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 NK3604-11.