Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HWF165 found under Ratchet Head Socket Wrench Handl by U S Air Tool Co Inc. The National Stock Number assigned to this part is 5120016014840, 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 HWF165.