5965-00-237-8048 (100)
NSN 5965-00-237-8048 (NIIN 00-237-8048) is a headset-microphone in Federal Supply Class 5965, Headsets, Handsets, Microphones And Speakers — an item consisting of a headset, electrical and a microphone (as modified) mounted on or supported from the head. Manufacturer part number 100 (Duke Mfg Co, CAGE 18759); also referenced as MILH11190 (Military Specifications); H62U (Joint Electronics Type Designation); TC209 (Telephonics Corp).
Key specs: 0.3 to 4 kHz frequency; 100 ohms nominal impedance; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8518.90.3000.