Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TT5055W3S found under Attenuator Fixed by Smiths Interconnect Microwave. The National Stock Number assigned to this part is 5985016280303, 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 TT5055W3S.