5950-00-263-0872 (1685-1)
NSN 5950-00-263-0872 (NIIN 00-263-0872) is a radio frequency transformer in Federal Supply Class 5950, Coils And Transformers — an item having either a single tapped winding (autotransformer type). Manufacturer part number 1685-1 (Smart Machines, Inc., CAGE 4W146); also referenced as 249 (U S Electronics Co).
Key specs: 2.6 to 3.6 MHz single component frequency; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8548.90.0100.