5985-01-077-6769 (654VM2505-1)
NSN 5985-01-077-6769 (NIIN 01-077-6769) is a radio frequency rotary coupler in Federal Supply Class 5985, Antennas, Waveguides, And Related Equipment — an item which provides a means of transfer of electrical energy between two components or sets. Manufacturer part number 654VM2505-1 (Lockheed Martin Corporation, CAGE 81755); also referenced as 3194 (Frontgrade Technologies Inc.).
Key specs: 3.9 to 4.1 gigahertz radio frequency; full characteristics table below. NIIN assigned May 1979; export Schedule B 8529.10.9000.