Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number V00439-001 found under Attenuator Fixed by Bae Systems Information And Electronic Systems Integration Inc Div Bae Systems. The National Stock Number assigned to this part is 5985004892167, 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 V00439-001.