Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AWM40191 found under Wrench Set Spanner by Aw Mack Manufacturing Co Inc. The National Stock Number assigned to this part is 5120006589805, 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 AWM40191.