The Receiver,radio, cataloged under National Stock Number 5820-00-503-1241, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5820-00-503-1241 |
| Primary Part Number | 1X1387 |
| Item Name | Receiver,radio |
| FSC / FSG | 5820 / 58 — Radio and Television Communication Equipment, Except Airborne |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Phase | SINGLE FIRST ALTERNATE OPERATING POWER RQMT |
| Phase | SINGLE SECOND ALTERNATE OPERATING POWER RQMT |
| AC Voltage Rating | 260.0 VOLTS NOMINAL SECOND ALTERNATE OPERATING POWER RQMT |
| AC Voltage Rating | 95.0 VOLTS NOMINAL FIRST ALTERNATE OPERATING POWER RQMT |
| Receiver Emission Type | A1 AND A2 AND A3 |
| Joint Electronics Type Designation System Item Type Number | R-274D/FRR |
| Joint Electronics Type Designation System Item Name | RADIO RECEIVER |
| Electrical Power Source Relationship | ALTERNATE OPERATING |
| Auxiliary Bandspread Tuning Feature | NOT INCLUDED |
| Input Frequency Rating | 0.540 MEGAHERTZ MINIMUM AND 54.000 MEGAHERTZ MAXIMUM |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SECOND ALTERNATE OPERATING POWER RQMT |
| Guard Channel | NOT INCLUDED |
| Receiver Band Quantity | 6 |
| Plug-in Tuning Unit | NOT INCLUDED |
| 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 |
|---|---|
| 1X1387 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| R274DFRR | 5/2 Secondary reference U.S. Government activity |
NSN 5820-00-503-1241 is a Receiver,radio, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5820, Radio and Television Communication Equipment, Except Airborne. Status: active.
NSN 5820-00-503-1241 has 1 manufacturer part number on file: 1X1387 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
Key specifications for 1X1387: Overall Height: 10.500 INCHES NOMINAL IN; Phase: SINGLE FIRST ALTERNATE OPERATING POWER RQMT; Phase: SINGLE SECOND ALTERNATE OPERATING POWER RQMT; AC Voltage Rating: 260.0 VOLTS NOMINAL SECOND ALTERNATE OPERATING POWER RQMT. 15 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 5820-00-503-1241 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.