Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 81.90405-0148 found under Bolt Machine by Man Truck And Bus Ag. The National Stock Number assigned to this part is 5306121632864, 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 81.90405-0148.