Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 401 019 025 found under Couplertransmission Line by Tyco Fire And Integrated Solutions. The National Stock Number assigned to this part is 5985016870825, 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 401 019 025.