Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MDB64309-175 found under Bellows Pressure by Aar Brooks And Perkins Corp. The National Stock Number assigned to this part is 3010008838073, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MDB64309-175.