The Microphone Element, cataloged under National Stock Number 5965-00-412-3185, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bruel & Kjaer Uk Ltd. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-00-412-3185 |
| Primary Part Number | 4135 |
| Item Name | Microphone Element |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Bruel & Kjaer Uk Ltd |
| Status | ACTIVE |
| Element Type | CAPACITOR |
| Body Style | ROUND SHAPE |
| Terminal Type | SURFACE CONTACT |
| Sound Pickup Directional Type | OMNIDIRECTIONAL |
| Frequency Response Range in Hertz | +30.0 TO 100000.0 |
| Diameter | 0.250 INCHES NOMINAL IN |
| Polarity Connection | REQUIRED |
| Height | 0.350 INCHES NOMINAL IN |
| Impedance Rating | 6.4 PICOFARADS NOMINAL |
| Output AC Voltage Rating | 200.0 MICROVOLTS NOMINAL |
| Output Sensitivity Rating in Decibels | -74.0 |
| Output Sensitivity Rating Reference | 1 VOLT PER MICROBAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4135 | Bruel & Kjaer Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 4135 | 3/9 Design control — primary reference B-K Medical Systems, Inc. |
NSN 5965-00-412-3185 is a Microphone Element, manufactured by Bruel & Kjaer Uk Ltd, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-412-3185 has 1 manufacturer part number on file: 4135 (Bruel & Kjaer Uk Ltd).
Key specifications for 4135: Element Type: CAPACITOR; Body Style: ROUND SHAPE; Terminal Type: SURFACE CONTACT; Sound Pickup Directional Type: OMNIDIRECTIONAL. 12 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.