The Loudspeaker-Microphone, cataloged under National Stock Number 5965-01-539-4841, 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 Seikaku Technical Group Ltd. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5965-01-539-4841 |
| Primary Part Number | ER-68 |
| Item Name | Loudspeaker-Microphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Seikaku Technical Group Ltd |
| Status | ACTIVE |
| Usage Design | INDOOR AND OUTDOOR |
| Power Source | D BATTERY |
| Style Designator | TRUMPET |
| Power Rating | 45.00 WATTS PEAK |
| Installation Design | PORTABLE |
| Battery Quantity | 10 |
| 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 |
|---|---|
| ER-68 | Seikaku Technical Group Ltd |
| Reference | Meaning |
|---|---|
| ER-69W | 3/9 Design control — primary reference Toa Electronics Inc |
| ER-69W | 5/9 Secondary reference Toa Electronics Inc |
NSN 5965-01-539-4841 is a Loudspeaker-Microphone, manufactured by Seikaku Technical Group Ltd, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-539-4841 has 1 manufacturer part number on file: ER-68 (Seikaku Technical Group Ltd).
Key specifications for ER-68: Overall Height: 13.780 INCHES NOMINAL IN; Usage Design: INDOOR AND OUTDOOR; Power Source: D BATTERY; Style Designator: TRUMPET. 6 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.