| Item Name | Headset Electrical |
| Federal Supply Group (FSG) | Electrical and Electronic Equipment Components |
| Federal Supply Class (FSC) | 5965 Headsets Handsets Microphones and Speakers |
| National Item Identification Number (NIIN) | 01-158-1232 (011581232) |
| NCB Code | USA (01) |
| Manufacturer | Astrocom Electronics Inc, David Clark Company Incorporated, Joyce Machine Co |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | HEADSET,COVERED |
| AARA | TERMINAL QUANTITY | 2 |
| ABFF | FURNISHED ITEMS | HEADBAND CUSHION |
| ACYW | IMPEDANCE RATING IN OHMS | 600.0 NOMINAL |
| AEEE | CONNECTOR MANUFACTURER CODE | 81349 |
| AEEF | CONNECTOR MANUFACTURER PART NUMBER | M642/4-1 |
| AHBM | INPUT TERMINAL TYPE | PLUG |
| AHEM | HEADSET CORD LENGTH | 60.0 INCHES NOMINAL |
| AHEQ | EARPHONE ELEMENT TYPE | DYNAMIC |
| AHER | CHANNEL MONITOR CAPABILITY | ANY ACCEPTABLE |
| AHES | EARPHONE QUANTITY | 2 |
| AHEX | EARPHONE INTERCONNECTION ARRANGEMENT | SERIES |
| AHFL | HEADSET OVERALL HEIGHT | 9.000 INCHES MAXIMUM |
| AHFM | HEADSET OVERALL WIDTH | 11.250 INCHES NOMINAL |
| AHFN | HEADSET OVERALL DEPTH | 4.500 INCHES NOMINAL |
| AHFR | REFERENCE FREQUENCY IN HERTZ | 1000.0 |
| AHFS | ACOUSTIC SENSITIVITY REFERENCE RATING | NOT RATED |
| AHFU | HEADSET CONNECTING CORD TERMINATION LOCATION | AT WEARERS RIGHT |
| BKSY | EARPHONE MOUNTING METHOD | DIAMETRICALLY OPPOSED HOLES IN OUTSIDE PERIPHERY OF CASE |
| CCPS | HEADBAND TYPE | ADJUSTABLE SINGLE BAND |
| CQTM | TERMINAL LOCATION | EXTERNAL |
| CSCF | TERMINAL TYPE | THREADED STUD |
| SPCL | SPECIAL TEST FEATURES | MIL-Q-21549B-SP24-1 |
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| 5940-01-264-7111 (5940012647111) | 5905-01-342-3348 (5905013423348) | 5960-00-995-5932 (5960009955932) | 5910-00-469-3009 (5910004693009) | |
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