The Coupler,keyer, cataloged under National Stock Number 5820-00-407-0768, is classified within Federal Supply Class 5820 (Radio and Television Communication Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Avex Electronics Corp.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5820-00-407-0768 |
| Primary Part Number | SM-B-447038 |
| Item Name | Coupler,keyer |
| FSC / FSG | 5820 / 58 — Radio and Television Communication Equipment, Except Airborne |
| Manufacturer | Avex Electronics Corp. |
| Status | ACTIVE |
| FSC Application Data | RADIO TELEVISION COMMUNICATION EQUIP. NON AIRBORNE |
| Terminal Type | THREADED LUG |
| Material | STEEL BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SM-B-447038 | Avex Electronics Corp. (USA) |
| SM-B-447038 | J F C Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-B-447038 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5820-00-407-0768 is a Coupler,keyer, manufactured by Avex Electronics Corp., classified under FSC 5820, Radio and Television Communication Equipment, Except Airborne. Status: active.
NSN 5820-00-407-0768 has 2 manufacturer part numbers on file: SM-B-447038 (Avex Electronics Corp.), SM-B-447038 (J F C Electronics Inc).
Key specifications for SM-B-447038: Overall Height: 0.125 INCHES NOMINAL IN; FSC Application Data: RADIO TELEVISION COMMUNICATION EQUIP. NON AIRBORNE; Terminal Type: THREADED LUG; Overall Length: 0.376 INCHES MINIMUM AND 0.386 INCHES MAXIMUM IN. 3 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.
NSN 5820-00-407-0768 has DEMIL Code C. Demilitarization may be required before disposal or transfer to non-military entities.
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.