Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MH1-XP4R found under by Procom. The National Stock Number assigned to this part is 5985015532406, 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 MH1-XP4R.