5965-00-241-6228 (1563)
NSN 5965-00-241-6228 (NIIN 00-241-6228) is an earphone element in Federal Supply Class 5965, Headsets, Handsets, Microphones And Speakers — the internal fabrication of an earphone. Manufacturer part number 1563 (Audiosears Corp, CAGE 97101); also referenced as SC-B-52531 (Us Army Communications & Electronics); TB947PT10526A (Telephone Company Of America).
Key specs: 250 nominal250.0 nominal impedance in ohms; not ratednot rated acoustic sensitivity reference; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8518.90.3000; ships at 0.1 lb / 0.0062 cu ft.