Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1PB43 found under Base Antenna Support by Chisholm Ryder Co Inc. The National Stock Number assigned to this part is 5985006368689, 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 1PB43.