Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M20053-1 found under Pneumatic Muffler Exhaust Intake by Control Devices Incorporated. The National Stock Number assigned to this part is 4310014316658, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M20053-1.