The Headset-Microphone, cataloged under National Stock Number 5965-01-597-4819, 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, Inc Dba R T S Systems Div Bosch Security Systems, Inc.. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-01-597-4819 |
| Primary Part Number | 300853-400 |
| Item Name | Headset-Microphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Bosch Security Systems, Inc Dba R T S Systems Div Bosch Security Systems, Inc. |
| Status | ACTIVE |
| Unpackaged Unit Weight | 3.0 OUNCES NOMINAL OZ |
| Microphone Element Type | DYNAMIC |
| Mounting Method | SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE |
| Microphone Mounting Facility | PIVOT |
| Earphone Identifying Number | PH-44 MODEL NO. |
| Earphone Quantity | 2 |
| Connector to Junction Cord Length | 5.5 FEET FT |
| Impedance Rating | 200.0 OHMS NOMINAL |
| Earphone Element Type | DYNAMIC |
| Frequency Rating | 200.0 HERTZ MINIMUM AND 10000.0 HERTZ MAXIMUM |
| Earphone Impedance Rating | 150.0 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 |
|---|---|
| 300853-400 PRIMARY | Bosch Security Systems, Inc Dba R T S Systems Div Bosch Security Systems, Inc. (USA) |
NSN 5965-01-597-4819 is a Headset-Microphone, manufactured by Bosch Security Systems, Inc Dba R T S Systems Div Bosch Security Systems, Inc., classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-597-4819 has 1 manufacturer part number on file: 300853-400 (Bosch Security Systems, Inc Dba R T S Systems Div Bosch Security Systems, Inc.).
Key specifications for 300853-400: Unpackaged Unit Weight: 3.0 OUNCES NOMINAL OZ; Microphone Element Type: DYNAMIC; Mounting Method: SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE; Microphone Mounting Facility: PIVOT. 11 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.