| Item Name | Headset Microphone |
| Federal Supply Group (FSG) | Electrical and Electronic Equipment Components |
| Federal Supply Class (FSC) | 5965 Headsets Handsets Microphones and Speakers |
| National Item Identification Number (NIIN) | 00-614-7280 (006147280) |
| NCB Code | USA (00) |
| Manufacturer | Audio Sears Corp, Lucent Technologies Inc, American Telephone And Telegraph Co, At And T Corp, Joint Electronics Type Designation System |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 1556 | audio sears corp | headset microphone | 97101 | RFQ |
| 52FRW | lucent technologies inc | headset microphone | 3b4m0 | RFQ |
| 52FRW | american telephone and telegraph co | headset microphone | 64959 | RFQ |
| 52FRW | at and t corp | headset microphone | 70408 | RFQ |
| H170U | joint electronics type designation system | headset microphone | 80058 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ACZB | FREQUENCY RATING | 0.2 KILOHERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM |
| AFYV | DC RESISTANCE RATING IN OHMS | 350.0 NOMINAL |
| AHEQ | EARPHONE ELEMENT TYPE | MAGNETIC |
| AHES | EARPHONE QUANTITY | 1 |
| AMSA | CONTROLLING AGENCY | WESTERN ELECTRIC |
| AMSB | IDENTIFYING NUMBER | N1 PART NO. |
| APAM | OPERATING CURRENT RATING | 60.0 MILLIAMPERES NOMINAL |
| BKSQ | EARPHONE IMPEDANCE RATING | 600.0 OHMS NOMINAL |
| BKSS | EARPHONE CONTROLLING AGENCY | WESTERN ELECTRIC |
| BKST | EARPHONE IDENTIFYING NUMBER | HC4 PART NO. |
| BKSW | MICROPHONE ELEMENT TYPE | CARBON |
| BKSX | OUTPUT LEVEL RATING | 35 DB ABOVE 1 MV |
| BKSY | EARPHONE MOUNTING METHOD | SUSPENDED ON HEADBAND |
| BKSZ | MICROPHONE MOUNTING FACILITY | ADAPTER FASTENED TO LEFT SIDE OF HEADBAND |
| BKTB | CONNECTOR NAME | PLUG |
| BKTF | CONNECTOR IDENTIFYING NUMBER | 289B PART NO. |
| BKTG | CONNECTOR TO JUNCTION CORD LENGTH | 7.000 FEET |
| BLJN | CONNECTOR CONTROLLING AGENCY | WESTERN ELECTRIC |
| Components Related to NSN - 5965-00-614-7280, 5965006147280 | ||||
| 5925-01-622-1713 (5925016221713) | 5950-00-224-8269 (5950002248269) | 5999-00-940-2834 (5999009402834) | 5945-00-963-1183 (5945009631183) | |
| 5940-00-615-5893 (5940006155893) | 5998-00-297-6935 (5998002976935) | 5950-00-646-2937 (5950006462937) | 5961-00-228-5860 (5961002285860) | |
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