Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 149520007 found under Nut Self Locking He by D And J Parts Inc. The National Stock Number assigned to this part is 5310007060785, 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 149520007.