Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 177534-18 found under Bolt Shear by Curtis Straus Llc. The National Stock Number assigned to this part is 5306012052808, 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 177534-18.