The Headset-Microphone, cataloged under National Stock Number 5965-01-450-3971, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-01-450-3971 |
| Item Name | Headset-Microphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Status | ACTIVE |
| Microphone Element Type | DYNAMIC |
| Mounting Method | SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE |
| Microphone Mounting Facility | ADAPTER FASTENED TO LEFT EARPHONE |
| Earphone Quantity | 2 |
| Output Level Rating | 100 TO 200 MICROVOLTS OUTPUT LEVEL |
| Connector Identifying Number | U-174/U TYPE NO. |
| Connector to Junction Cord Length | 19.000 INCHES AND 60.000 INCHES IN |
| Impedance Rating | 5.0 OHMS NOMINAL |
| Earphone Element Type | DYNAMIC |
| Frequency Rating | 0.2 KILOHERTZ MINIMUM AND 5.5 KILOHERTZ MAXIMUM |
| Connector Name | PLUG |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| M87819/5-01 | 2/2 Government specification standardization U.S. Government activity |
| MIL-PRF-87819/5 | 4/1 Identification reference U.S. Government activity |
| MIL-PRF-87819 | 5/9 Secondary reference U.S. Government activity |
NSN 5965-01-450-3971 is a Headset-Microphone, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
Key specifications for 5965-01-450-3971: Microphone Element Type: DYNAMIC; Mounting Method: SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE; Microphone Mounting Facility: ADAPTER FASTENED TO LEFT EARPHONE; Earphone Quantity: 2. 11 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.