| 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) | 00-505-2128 (005052128) |
| NCB Code | USA (00) |
| Manufacturer | American Telephone And Telegraph Co, Lucent Technologies Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 100-673-201 | american telephone and telegraph co | headset microphone | 64959 | RFQ |
| 53DRW | american telephone and telegraph co | headset microphone | 64959 | RFQ |
| 53LR100673110 | american telephone and telegraph co | headset microphone | 64959 | RFQ |
| 53LR100673110 | lucent technologies inc | headset microphone | 3b4m0 | RFQ |
| 53LRW | american telephone and telegraph co | headset microphone | 64959 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AFYV | DC RESISTANCE RATING IN OHMS | 50.0 NOMINAL |
| AHEQ | EARPHONE ELEMENT TYPE | MAGNETIC |
| AHES | EARPHONE QUANTITY | 1 |
| AMSA | CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| AMSB | IDENTIFYING NUMBER | N1 PART NO. |
| APAM | OPERATING CURRENT RATING | 100.0 MILLIAMPERES NOMINAL |
| BKSQ | EARPHONE IMPEDANCE RATING | 650.0 OHMS NOMINAL |
| BKSS | EARPHONE CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| BKST | EARPHONE IDENTIFYING NUMBER | HC4 PART NO. |
| BKSW | MICROPHONE ELEMENT TYPE | CARBON |
| BKSY | EARPHONE MOUNTING METHOD | SUSPENDED ON HEADBAND |
| BKSZ | MICROPHONE MOUNTING FACILITY | TUBE ATTACHED TO EARPHONE HANDLE |
| BKTB | CONNECTOR NAME | PLUG |
| BKTF | CONNECTOR IDENTIFYING NUMBER | 289B PART NO. |
| BKTG | CONNECTOR TO JUNCTION CORD LENGTH | 12.000 FEET |
| BLJN | CONNECTOR CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| Components Related to NSN - 5965-00-505-2128, 5965005052128 | ||||
| 5998-00-404-5283 (5998004045283) | 5970-01-147-6559 (5970011476559) | 5905-01-619-3720 (5905016193720) | 5998-01-233-0410 (5998012330410) | |
| 5910-01-473-2951 (5910014732951) | 5910-01-337-0976 (5910013370976) | 5945-01-701-5176 (5945017015176) | 5962-01-293-2081 (5962012932081) | |
| 5995-01-500-4596 (5995015004596) | 5998-01-339-9359 (5998013399359) | 5935-00-005-2930 (5935000052930) | 5995-01-354-7490 (5995013547490) | |
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