Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U4310801 found under Attenuator Variable by Etat Major De Larmee De Terre. The National Stock Number assigned to this part is 5985009198548, 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 U4310801.