Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 72-C04132 found under Nozzle Caulking Gun by U S Air Tool Co Inc. The National Stock Number assigned to this part is 5120015422168, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 72-C04132.