Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KS9037 found under Attenuator Variable by Lucent Technologies Inc. The National Stock Number assigned to this part is 5985002305160, 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 KS9037.