The Headset-Microphone, cataloged under National Stock Number 5965-01-049-7487, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-01-049-7487 |
| Item Name | Headset-Microphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Status | ACTIVE |
| Microphone Element Type | CARBON |
| Mounting Method | IN BAR CUSHIONS SUSPENDED IN HELMET EARPHONE |
| Microphone Mounting Facility | BOOM ADAPTER ON LEFT SIDE OF HEADBAND |
| Earphone Identifying Number | 111380-55 DRAWING NO. |
| Earphone Quantity | 2 |
| Connector Identifying Number | UG-77/U TYPE NO. |
| Impedance Rating | 30.0 OHMS NOMINAL |
| Connector Controlling Agency | JETDS |
| Earphone Element Type | DYNAMIC |
| Frequency Rating | 200.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM |
| Connector Name | PLUG |
| Earphone Controlling Agency | ROANWELL CORPORATION |
| Earphone Impedance Rating | 600.0 OHMS NOMINAL |
| 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 |
|---|---|
| 114660-690 | 5/9 Secondary reference U.S. Government activity |
| HS102-1 | 5/2 Secondary reference U.S. Government activity |
| 490-443-001-694 | 3/2 Design control — primary reference U.S. Government activity |
| 490-443-001-690 | 5/9 Secondary reference U.S. Government activity |
NSN 5965-01-049-7487 is a Headset-Microphone, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5930-01-372-0238. Verify interchangeability with system specifications before substitution.
Key specifications for 5965-01-049-7487: Microphone Element Type: CARBON; Mounting Method: IN BAR CUSHIONS SUSPENDED IN HELMET EARPHONE; Microphone Mounting Facility: BOOM ADAPTER ON LEFT SIDE OF HEADBAND; Earphone Identifying Number: 111380-55 DRAWING NO.. 13 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.