5950-00-199-6236 (51C542)
NSN 5950-00-199-6236 (NIIN 00-199-6236) 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 51C542 (Northrop Grumman Systems Corporation, CAGE 26916); also referenced as C447 (Us Army Communications & Electronics).
Key specs: 8 to 11 MHz single component frequency; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8548.90.0100.