The Receiver,radio, cataloged under National Stock Number 5820-00-503-1256, is classified within Federal Supply Class 5820 (Radio and Television Communication Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5820-00-503-1256 |
| Item Name | Receiver,radio |
| FSC / FSG | 5820 / 58 — Radio and Television Communication Equipment, Except Airborne |
| Status | ACTIVE |
| Phase | SINGLE FIRST ALTERNATE OPERATING POWER RQMT |
| Phase | SINGLE FIRST OPERATING POWER RQMT |
| AC Voltage Rating | 230.0 VOLTS NOMINAL FIRST ALTERNATE OPERATING POWER RQMT |
| AC Voltage Rating | 115.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT |
| Receiver Emission Type | A1 AND A2 AND A3 |
| DC Voltage Rating | 24.0 VOLTS NOMINAL FIRST ALTERNATE OPERATING POWER RQMT |
| DC Voltage Rating | 24.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT |
| Joint Electronics Type Designation System Item Type Number | R-391/URR |
| Joint Electronics Type Designation System Item Name | RADIO RECEIVER |
| Nondefinitive Spec/std Data | R-391/URR TYPE |
| Electrical Power Source Relationship | ALTERNATE OPERATING |
| Output Impedance Rating | 600.0 OHMS NOMINAL |
| Auxiliary Bandspread Tuning Feature | INCLUDED |
| Receiver Channel Quantity | 8 |
| Input Frequency Rating | 0.500 MEGAHERTZ MINIMUM AND 32.000 MEGAHERTZ MAXIMUM |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM FIRST OPERATING POWER RQMT |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT |
| Guard Channel | NOT INCLUDED |
| Receiver Band Quantity | 32 |
| 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 |
| Reference | Meaning |
|---|---|
| MILR10474 | 4/1 Identification reference U.S. Government activity |
| R391URR | 5/1 Secondary reference U.S. Government activity |
| R391URR | 2/2 Government specification standardization U.S. Government activity |
NSN 5820-00-503-1256 is a Receiver,radio, classified under FSC 5820, Radio and Television Communication Equipment, Except Airborne. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5820-00-503-1417. Verify interchangeability with system specifications before substitution.
Key specifications for 5820-00-503-1256: Overall Height: 14.500 INCHES NOMINAL IN; Phase: SINGLE FIRST ALTERNATE OPERATING POWER RQMT; Phase: SINGLE FIRST OPERATING POWER RQMT; AC Voltage Rating: 230.0 VOLTS NOMINAL FIRST ALTERNATE OPERATING POWER RQMT. 20 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 5820-00-503-1256 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.