Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MEXA 300A found under Analyzer Gasoline Engine Exhaust by Horiba Instruments Incorporated. The National Stock Number assigned to this part is 4910010103179, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MEXA 300A.