5950-00-979-1180 (677-1242-000)
NSN 5950-00-979-1180 (NIIN 00-979-1180) is an audio frequency transformer in Federal Supply Class 5950, Coils And Transformers — a transformer which is designed so that part or all of its range of operating frequencies is 20 kilohertz (kilocycles) and below. Manufacturer part number 677-1242-000 (Hammond Mfg Co Ltd, CAGE 73831); also referenced as 44091 (Hammond Mfg Co Ltd).
Key specs: 82 nominal single component single primary impedance in ohms; 100000 nominal single component single secondary impedance in ohms; full characteristics table below. NIIN assigned October 1966; DEMIL A (none required); export Schedule B 8548.90.0100.