Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MAI-9163679 found under Ring Wearing by Argus Mfg Corp. The National Stock Number assigned to this part is 4320009163679, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MAI-9163679.