5950-00-943-9149 (151-120-0001)
NSN 5950-00-943-9149 (NIIN 00-943-9149) is a power transformer in Federal Supply Class 5950, Coils And Transformers — a transformer consisting of one or more primary winding(s) and one or more secondary winding(s). Manufacturer part number 151-120-0001 (Northrop Grumman Systems Corporation, CAGE 95542); also referenced as BK25, BK25-115V-400HZ, BX25 (Keytronics, Inc.).
Key specs: 400 hertz maximum single component frequency; 3.5 A AC maximum single component single secondary winding operating current; full characteristics table below. NIIN assigned February 1966; DEMIL A (none required); unit of issue EA (each), $198.49 gov standard price.