| 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) | 00-839-8990 (008398990) |
| NCB Code | USA (00) |
| Manufacturer | International Payroll Machine Co, Roanwell Corporation, Joint Electronics Type Designation System, Itt Telecom Products Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| ACZB | FREQUENCY RATING | 0.2 KILOHERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM |
| AHEQ | EARPHONE ELEMENT TYPE | DYNAMIC |
| AHES | EARPHONE QUANTITY | 1 |
| AMSA | CONTROLLING AGENCY | JETDS |
| BKSS | EARPHONE CONTROLLING AGENCY | JETDS |
| BKSW | MICROPHONE ELEMENT TYPE | DYNAMIC |
| BKSX | OUTPUT LEVEL RATING | 67 DB BELOW 1 MW AT 10 DYNE PER CM SQ |
| BKSY | EARPHONE MOUNTING METHOD | SUSPENDED ON HEADBAND |
| BKTB | CONNECTOR NAME | PLUG |
| BLJN | CONNECTOR CONTROLLING AGENCY | DEUTSCH MFG CO |
| AFYY | IMPEDANCE RATING | 150.0 OHMS NOMINAL |
| AMSB | IDENTIFYING NUMBER | M-33/A1C /MODIFIED/ TYPE NO. |
| BKSQ | EARPHONE IMPEDANCE RATING | 150.0 OHMS NOMINAL |
| BKST | EARPHONE IDENTIFYING NUMBER | H-79/A1C /MODIFIED/ TYPE NO. |
| BKSZ | MICROPHONE MOUNTING FACILITY | ADAPTER FASTENED TO LEFT SIDE OF HEADBAND |
| BKTF | CONNECTOR IDENTIFYING NUMBER | DM-9702-7P PART NO. |
| BKTG | CONNECTOR TO JUNCTION CORD LENGTH | 6.000 FEET |
| FEAT | SPECIAL FEATURES | ONE 150 OHM IMPEDANCE TRANSFORMER FOR MICROPHONE; ONE 150 OHM IMPEDANCE TRANSFORMER FOR RECEIVER |
| Relevant Components for NSN - 5965-00-839-8990, 5965008398990 | ||||
| 5920-01-337-7645 (5920013377645) | 5995-01-688-0358 (5995016880358) | 5935-01-132-7705 (5935011327705) | 5910-00-152-4145 (5910001524145) | |
| 5945-01-363-9722 (5945013639722) | 5975-01-032-9067 (5975010329067) | 5998-01-433-6008 (5998014336008) | 5970-01-298-0394 (5970012980394) | |
| 5998-01-674-4887 (5998016744887) | 5935-01-294-4644 (5935012944644) | 5975-01-216-8288 (5975012168288) | 5915-00-412-1691 (5915004121691) | |
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