Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RCA2906389-1 found under Seal Waveguide by Star Glo Industries Inc. The National Stock Number assigned to this part is 5985012744157, 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 RCA2906389-1.