5985-01-237-4009 (292-12-010)
NSN 5985-01-237-4009 (NIIN 01-237-4009) is a fixed attenuator in Federal Supply Class 5985, Antennas, Waveguides, And Related Equipment — a device for reducing the strength of an alternating current signal by a fixed or predetermined amount, without causing appreciable signal distortion. Manufacturer part number 292-12-010 (Cinch Connectivity Solutions Inc, CAGE 34078); also referenced as 570997-121 (Raytheon Company).
Key specs: 1.15 and 1.20 voltage standing wave ratio; 50 input impedance in ohms; -28 to 90 °C operating range; full characteristics table below. NIIN assigned July 1986; unit of issue EA (each), $59.94 gov standard price; export Schedule B 8529.10.9000; ships at 0.02 lb / 0.002 cu ft.