5985-01-014-4643 (8129E-100)
NSN 5985-01-014-4643 (NIIN 01-014-4643) is a variable attenuator in Federal Supply Class 5985, Antennas, Waveguides, And Related Equipment — a device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion. Manufacturer part number 8129E-100.
NIIN assigned December 1975; DEMIL B (USML, demil required).