# NSN 5965-01-450-3971: Headset-Microphone

NSN 5965-01-450-3971 (also written 5965014503971; NIIN 01-450-3971) is a headset-microphone in Federal Supply Class 5965, Headsets, Handsets, Microphones and Speakers. 3 manufacturer part numbers from 1 supplier are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5965-01-450-3971 (5965014503971)
- NIIN: 01-450-3971 (014503971)
- Item name: HEADSET-MICROPHONE
- Federal Supply Class: [FSC 5965 Headsets, Handsets, Microphones and Speakers](https://nsnexplorer.com/fsc/5965/)
- Federal Supply Group: [FSG 59](https://nsnexplorer.com/group/59/)
- Acquisition method suffix code: AMSC T: handled under qualified products list procedures. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ACZB | FREQUENCY RATING | KILOHERTZ MINIMUM 0.2 AND KILOHERTZ MAXIMUM 5.5 |
| AFYY | IMPEDANCE RATING | OHMS NOMINAL 5.0 |
| AHEQ | EARPHONE ELEMENT TYPE | DYNAMIC |
| AHES | EARPHONE QUANTITY | 2 |
| AXGY | MOUNTING METHOD | EARPHONE SUSPENDED ON ADJUSTABLE HEADBAND |
| BKSW | MICROPHONE ELEMENT TYPE | DYNAMIC |
| BKSX | OUTPUT LEVEL RATING | 100 TO 200 MICROVOLTS OUTPUT LEVEL |
| BKSZ | MICROPHONE MOUNTING FACILITY | ADAPTER FASTENED TO LEFT EARPHONE |
| BKTB | CONNECTOR NAME | PLUG |
| BKTF | CONNECTOR IDENTIFYING NUMBER | TYPE NO. U-174 TO U |
| BKTG | CONNECTOR TO JUNCTION CORD LENGTH | INCHES 19.000 AND INCHES 60.000 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| M87819/5-01 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-PRF-87819 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-PRF-87819/5 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-08 | $1,379.52 | 3 | ASTROCOM ELECTRONICS INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5965014503971) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-08 | [SPE7M527P0207](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5965014503971) | HEADSET-MICROPHONE | ASTROCOM ELECTRONICS INC | $4,138.56 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5965014503971&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5965014503971
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/5965-01-450-3971/
JSON: https://nsnexplorer.com/api/nsn/5965-01-450-3971.json