Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 123 0127 found under Seal Radio Frequenc by Avionics Specialist Inc. The National Stock Number assigned to this part is 5985014863936, 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 123 0127.