The Tuning Unit,radio Frequency, cataloged under National Stock Number 5820-00-679-9433, 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 J F C Electronics Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5820-00-679-9433 |
| Primary Part Number | 543-2991-003 |
| Item Name | Tuning Unit,radio Frequency |
| FSC / FSG | 5820 / 58 — Radio and Television Communication Equipment, Except Airborne |
| Manufacturer | J F C Electronics Inc |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| FSC Application Data | RADIO RECEIVER AMPLIFIER,EXCEPT NAVIGATION,NONAIRBORNE |
| Inclosure Type | ENCASED |
| Control Type | LOCAL |
| Frequency Per Channel | 1.7 MEGAHERTZ MINIMUM OPERATING CHANNEL |
| Frequency Per Channel | 3.7 MEGAHERTZ MAXIMUM OPERATING CHANNEL |
| Connection Type | INTEGRAL CABLE W/POWER PLUG BOTTOM |
| Connection Contact Type and Quantity | 5 SOLDER LUG EXTERNAL |
| Operating Control Method | MANUAL |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Average Life Measurement | NOT RATED |
| Installation Design | MODULE |
| External DC Operating Voltage in Volts | 15.0 NOMINAL SINGLE VOLTAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 543-2991-003 | J F C Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| 543-2991-003 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 543-2991-003 | 3/2 Design control — primary reference U.S. Government activity |
| 543-2991-003DTD21FEB | C/1 Advisory reference — outside the item-of-supply concept Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5820-00-679-9433 is a Tuning Unit,radio Frequency, manufactured by J F C Electronics Inc, classified under FSC 5820, Radio and Television Communication Equipment, Except Airborne. Status: active.
NSN 5820-00-679-9433 has 1 manufacturer part number on file: 543-2991-003 (J F C Electronics Inc).
Key specifications for 543-2991-003: Circuit Construction Type: SOLID STATE; Overall Height: 0.976 INCHES NOMINAL IN; FSC Application Data: RADIO RECEIVER AMPLIFIER,EXCEPT NAVIGATION,NONAIRBORNE; Inclosure Type: ENCASED. 13 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 5820-00-679-9433 has DEMIL Code Q. 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.