5835-00-957-3565 (BK1072S5713)
NSN 5835-00-957-3565 (NIIN 00-957-3565) is a magnetic head in Federal Supply Class 5835, Sound Recording And Reproducing Equipment — an item which consists of electromagnets which record and/or reproduce. Manufacturer part number BK1072S5713 (Gould Instrument Systems Inc, CAGE 96795); also referenced as 200110 (Dictaphone Corporation).
Key specs: -5 to 5 frequency response tolerance in decibels; 1 to 1.5 frequency response range in hertz; full characteristics table below. NIIN assigned January 1962; DEMIL A (none required); export Schedule B 8522.90.0010.