Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS6406AL20 found under Boltshear by Aerospace Industries Llc. The National Stock Number assigned to this part is 5306016824523, 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 NAS6406AL20.