Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BACBN30LJ7DU21 found under Bolt Close Tolerance by Federal Industries Inc. The National Stock Number assigned to this part is 5306010408709, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BACBN30LJ7DU21.