5985-00-881-1553 (10690806-4)
NSN 5985-00-881-1553 (NIIN 00-881-1553) is a directional coupler in Federal Supply Class 5985, Antennas, Waveguides, And Related Equipment — an item specifically designed to be inserted into a transmission line, waveguide or coaxial transmission line to provide a suitable test outlet. Manufacturer part number 10690806-4 (Us Army Aviation And Missile Command, CAGE 18876); also referenced as 91328978 (Thales Sa); 128C845H03 (Northrop Grumman Support Services); 26849, 3002-30 (Narda Holdings, Inc.); L4410-30 (Telephonics Corp/Prd Instruments).
Key specs: 0.95 to 2 gigahertz radio frequency; 30 power loss in decibels; full characteristics table below. NIIN assigned January 1962; export Schedule B 8529.10.9000; ships at 1 lb / 0.0156 cu ft. Related NSN 5985-01-081-3958.