5950-00-681-2068 (543-0940-002)
NSN 5950-00-681-2068 (NIIN 00-681-2068) is an electromagnetic component core in Federal Supply Class 5950, Coils And Transformers — a solid or assembled item made of ferromagnetic material and designed to be used for the construction of a coil (as modified), a transformer (as modified). Manufacturer part number 543-0940-002 (Rockwell Collins, Inc., CAGE 13499); also referenced as 127941-002 (Northrop Grumman Systems Corporation).
Key specs: 7.5 at 1 mc permeability; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $6.50 gov standard price; export Schedule B 8504.90.0020.