The Headset-Microphone, cataloged under National Stock Number 5965-01-454-8076, 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 Bosch Security Systems, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-01-454-8076 |
| Primary Part Number | 300400-000 |
| Item Name | Headset-Microphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Bosch Security Systems, Llc |
| Status | ACTIVE |
| Controlling Agency | TELEX COMMUNICATIONS |
| Microphone Element Type | ELECTRET CONDENSER |
| Mounting Method | SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE |
| Microphone Mounting Facility | BOOM ADAPTER ON LEFT SIDE OF HEADBAND |
| Identifying Number | 300400-00 0 PART NO. |
| Criticality Code Justification | FEAT |
| Earphone Quantity | 2 |
| Connector to Junction Cord Length | 5.500 FEET FT |
| Impedance Rating | 50.0 OHMS NOMINAL |
| Earphone Element Type | DYNAMIC |
| Frequency Rating | 100.0 HERTZ MINIMUM AND 3.5 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 300400-000 PRIMARY | Bosch Security Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 300400-000 | 3/9 Design control — primary reference Telex Communications Inc Sub of Telex Corp |
| AIR3500 | 5/9 Secondary reference Telex Communications Inc Sub of Telex Corp |
NSN 5965-01-454-8076 is a Headset-Microphone, manufactured by Bosch Security Systems, Llc, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-454-8076 has 1 manufacturer part number on file: 300400-000 (Bosch Security Systems, Llc).
Key specifications for 300400-000: Controlling Agency: TELEX COMMUNICATIONS; Microphone Element Type: ELECTRET CONDENSER; Mounting Method: SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE; Microphone Mounting Facility: BOOM ADAPTER ON LEFT SIDE OF HEADBAND. 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.