Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P212B17 found under Waveguide Assembly by Mutron Corp. The National Stock Number assigned to this part is 5985000264601, 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 P212B17.