Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS1120-40D found under Bolt Shear by F And C Sales Inc. The National Stock Number assigned to this part is 5306001515687, 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 NAS1120-40D.