The Tuner,radio Frequency, cataloged under National Stock Number 5821-01-474-2547, is classified within Federal Supply Class 5821 (Radio and Television Communication Equipment, Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5821-01-474-2547 |
| Primary Part Number | 153-040047-01 |
| Item Name | Tuner,radio Frequency |
| FSC / FSG | 5821 / 58 — Radio and Television Communication Equipment, Airborne |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Color | BLACK |
| Special Markings | LOGIC CONVERTER UNIT |
| Installation Design | MECHANICAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 153-040047-01 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| 7-119PIN9 | Chelton Limited Div Cobham Antennas Bu (GBR) |
| S434A20A1002 | Airbus Helicopters (ets De Marignane) (FRA) |
| Reference | Meaning |
|---|---|
| 153-040047-01 | 3/9 Design control — primary reference Cobham Management Services Inc. Div Chelton Avionics Inc Dba Wulfsberg Electronics Division |
NSN 5821-01-474-2547 is a Tuner,radio Frequency, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 5821, Radio and Television Communication Equipment, Airborne. Status: active.
NSN 5821-01-474-2547 has 3 manufacturer part numbers on file: 153-040047-01 (Leonardo Spa Helicopters Division - Production Site), 7-119PIN9 (Chelton Limited Div Cobham Antennas Bu), S434A20A1002 (Airbus Helicopters (ets De Marignane)).
Key specifications for 153-040047-01: Overall Height: 3.030 INCHES MAXIMUM IN; Overall Length: 6.290 INCHES MAXIMUM IN; Overall Width: 2.350 INCHES MAXIMUM IN; Basic Shape Style: RECTANGULAR OR SQUARE. 4 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.