Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M31A-997-BEEF12-25 found under Motor Hydraulic by Commercial Stamping And Forging Inc. The National Stock Number assigned to this part is 4320012338102, 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 M31A-997-BEEF12-25.