5965-00-661-0468 (75547)
NSN 5965-00-661-0468 (NIIN 00-661-0468) is an earphone element in Federal Supply Class 5965, Headsets, Handsets, Microphones And Speakers — the internal fabrication of an earphone. Manufacturer part number 75547 (L3Harris Technologies, Inc., CAGE 31550); also referenced as CPN977-0175-010 (L3Harris Technologies, Inc.).
Key specs: 150 nominal impedance in ohms; not rated acoustic sensitivity reference; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8518.90.3000. Related NSN 5965-00-462-6887.