Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B18.24-2004 found under Bolt Machine by American Society Of Mechanical. The National Stock Number assigned to this part is 5306016536763, 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 B18.24-2004.