PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

521AReceiver,radio

Drs Signal Solutions, Inc. · NSN 5820-00-136-1922 · FSC 5820 · No Item Name Available
Verified by PartsTable
NSN 5820-00-136-1922 — this item is cataloged by the U.S. Government under National Stock Number 5820-00-136-1922. Primary manufacturer part number: 521A.
Features
  • Receiver,radio — FSC 5820
  • Receiver Band Quantity: 1
  • Auxiliary Bandspread Tuning Feature: INCLUDED
  • FSC Application Data: RECEIVER,RADIO,EXCEPT NAVIGATION,NONAIRBORNE
  • Guard Channel: NOT INCLUDED
  • Plug-in Tuning Unit: NOT INCLUDED
  • Phase: SINGLE FIRST OPERATING POWER RQMT
  • Receiver Emission Type: AO AND A1 AND A3 AND F2 AND F3
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Receiver,radio, cataloged under National Stock Number 5820-00-136-1922, is classified within Federal Supply Class 5820 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Drs Signal Solutions, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5820-00-136-1922
Primary Part Number521A
Item NameReceiver,radio
FSC / FSG5820 / 58 — No Item Name Available
ManufacturerDrs Signal Solutions, Inc.
StatusACTIVE
Receiver Band Quantity1
Auxiliary Bandspread Tuning FeatureINCLUDED
FSC Application DataRECEIVER,RADIO,EXCEPT NAVIGATION,NONAIRBORNE
Guard ChannelNOT INCLUDED
Plug-in Tuning UnitNOT INCLUDED
PhaseSINGLE FIRST OPERATING POWER RQMT
Receiver Emission TypeAO AND A1 AND A3 AND F2 AND F3
Joint Electronics Type Designation System Item NameRECEIVER,RADIO
AC Voltage Rating115.000 VOLTS MINIMUM AND 230.000 VOLTS MAXIMUM FIRST OPERATING POWER RQMT
Output Impedance Rating600.000 OHMS NOMINAL
Frequency Rating50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM FIRST OPERATING POWER RQMT
Joint Electronics Type Designation System Item Type NumberR-1625/UR
Electrical Power Source RelationshipOPERATING
Input Frequency Rating20.000 MEGAHERTZ MINIMUM AND 70.000 MEGAHERTZ MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5962-00-163-4110221G3123-1-1 INTERCHANGEABLE
Microcircuit,linear
Herley Chicago Dba Stewart Warner Electronics
6625-01-175-2599PD87MMTRBCID77 INTERCHANGEABLE
Counter,electronic,digital Reado
Warner Robins Air Logistics Center
Cross-Reference Index
Part NumberManufacturer
R-1625/UR Joint Electronics Type Designation System (USA)
521A PRIMARY Drs Signal Solutions, Inc. (USA)
Related Parts
5962-00-163-4110INTERCHANGEABLE
MICROCIRCUIT,LINEAR
221G3123-1-1
6625-01-175-2599INTERCHANGEABLE
COUNTER,ELECTRONIC,DIGITAL READO
PD87MMTRBCID77

Frequently Asked Questions

What is NSN 5820-00-136-1922?

NSN 5820-00-136-1922 is a Receiver,radio, manufactured by Drs Signal Solutions, Inc., classified under FSC 5820 (No Item Name Available). Status: active.

What are the part numbers for NSN 5820-00-136-1922?

NSN 5820-00-136-1922 has 2 cross-referenced part numbers: R-1625/UR (Joint Electronics Type Designation System), 521A (Drs Signal Solutions, Inc.).

What NSN replaces 5820-00-136-1922?

There are 2 known substitutes for 5820-00-136-1922: 5962-00-163-4110, 6625-01-175-2599. Verify interchangeability with system specifications before substitution.

What are the specifications of 521A?

Key specifications for 521A: Special Features: 3.500 IN. BY 17.500 IN BY 19.000 IN. O/A DIM IN; Receiver Band Quantity: 1; Auxiliary Bandspread Tuning Feature: INCLUDED; FSC Application Data: RECEIVER,RADIO,EXCEPT NAVIGATION,NONAIRBORNE. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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