Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D272-15REVB found under Cover Waveguide Hor by Whittaker Corporation. The National Stock Number assigned to this part is 5985002960646, 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 D272-15REVB.