The HEADSET-MICROPHONE is a the manufacturer industrial component. Key specifications include mounting_method: IN BAR CUSHIONS SUSPENDED IN HELMET EARPHONE, frequency_rating: 3.5 KILOHERTZ NOMINAL, impedance_rating: 150.0 OHMS NOMINAL, controlling_agency: JETDS, identifying_number: M-138/G TYPE NO., output_level_rating: MINUS 50DBM A 1000.0 HZ DBM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5965-00-937-1850, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
| mounting_method | IN BAR CUSHIONS SUSPENDED IN HELMET EARPHONE |
| frequency_rating | 3.5 KILOHERTZ NOMINAL |
| impedance_rating | 150.0 OHMS NOMINAL |
| earphone_quantity | 2 |
| controlling_agency | JETDS |
| identifying_number | M-138/G TYPE NO. |
| output_level_rating | MINUS 50DBM A 1000.0 HZ DBM |
| earphone_element_type | DYNAMIC |
| microphone_element_type | DYNAMIC |
| earphone_impedance_rating | 15.0 OHMS NOMINAL |
| earphone_controlling_agency | JETDS |
| earphone_identifying_number | H-269/G TYPE NO. |
| NSN | 5965-00-937-1850 |
| MOUNTING METHOD | IN BAR CUSHIONS SUSPENDED IN HELMET EARPHONE |
| CONNECTOR TO JUNCTION CORD LENGTH | 1.390 FEET FT |
| EARPHONE IMPEDANCE RATING | 15.0 OHMS NOMINAL |
| MICROPHONE ELEMENT TYPE | DYNAMIC |
| TEST DATA DOCUMENT | 81349-MIL-H-55535 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| OUTPUT LEVEL RATING | MINUS 50DBM A 1000.0 HZ DBM |
| CONTROLLING AGENCY | JETDS |
| EARPHONE ELEMENT TYPE | DYNAMIC |
| EARPHONE IDENTIFYING NUMBER | H-269/G TYPE NO. |
| IDENTIFYING NUMBER | M-138/G TYPE NO. |