Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MPM 434 found under Attenuator Subassem by Cobham Electronic Systems Inc. The National Stock Number assigned to this part is 5985013023681, and the Federal Supply Class is 5985 Antennas Waveguides And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MPM 434.