Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5266 found under Guide Box Mast by Clark Masts Teksam Ltd. The National Stock Number assigned to this part is 5985999715721, 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 5266.