The Headset-Microphone, cataloged under National Stock Number 5965-01-699-1947, 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 Beyerdynamic Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5965-01-699-1947 |
| Primary Part Number | MMX 300 |
| Item Name | Headset-Microphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Beyerdynamic Inc |
| Status | ACTIVE |
| Microphone Element Type | ELECTRET CONDENSER |
| Microphone Mounting Facility | ADAPTER FASTENED TO LEFT EARPHONE |
| Earphone Identifying Number | MX300 PART NO. |
| Earphone Quantity | 2 |
| Connector to Junction Cord Length | 3.9 FEET FT |
| Earphone Element Type | DYNAMIC |
| Frequency Rating | 5.0 HERTZ MINIMUM OR 35000.0 HERTZ MAXIMUM |
| Connector Name | JACK OR PLUG |
| Earphone Impedance Rating | 32.0 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 |
| Part Number | Manufacturer |
|---|---|
| MMX 300 PRIMARY | Beyerdynamic Inc (USA) |
| Reference | Meaning |
|---|---|
| 10483744 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 8887219 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 5965-01-699-1947 is a Headset-Microphone, manufactured by Beyerdynamic Inc, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-699-1947 has 1 manufacturer part number on file: MMX 300 (Beyerdynamic Inc).
Key specifications for MMX 300: Microphone Element Type: ELECTRET CONDENSER; Microphone Mounting Facility: ADAPTER FASTENED TO LEFT EARPHONE; Earphone Identifying Number: MX300 PART NO.; Earphone Quantity: 2. 9 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.