The Microphone Element, cataloged under National Stock Number 5965-00-678-6439, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5965-00-678-6439 |
| Item Name | Microphone Element |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Status | ACTIVE |
| Element Type | CARBON |
| Body Style | ROUND SHAPE |
| Terminal Type | SURFACE CONTACT |
| DC Resistance Rating in Ohms | 40.0 NOMINAL |
| Sound Pickup Directional Type | NOT RATED |
| Frequency Response Range in Hertz | +400.0 TO 3750.0 |
| Diameter | 1.750 INCHES NOMINAL IN |
| Operating DC | 75.0 MILLIAMPERES NOMINAL |
| Polarity Connection | NOT REQUIRED |
| Height | 0.562 INCHES NOMINAL IN |
| 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 |
|---|---|
| B3313A | 3/9 Design control — primary reference Industrial Radio Corp |
NSN 5965-00-678-6439 is a Microphone Element, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5965-00-961-1627. Verify interchangeability with system specifications before substitution.
Key specifications for 5965-00-678-6439: Element Type: CARBON; Body Style: ROUND SHAPE; Terminal Type: SURFACE CONTACT; DC Resistance Rating in Ohms: 40.0 NOMINAL. 10 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.