PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RT556APX46Receiver-Transmitter,radio

Joint Electronics Type Designation System · NSN 5821-00-814-6979 · FSC 5821 · No Item Name Available
Verified by PartsTable
NSN 5821-00-814-6979 — this item is cataloged by the U.S. Government under National Stock Number 5821-00-814-6979. Primary manufacturer part number: RT556APX46.
Features
  • Receiver-Transmitter,radio — FSC 5821
  • Transmitter Channel Quantity: 3
  • Frequency Rating: 400.0 HERTZ NOMINAL FIRST OPERATING POWER RQMT
  • Transmitter Band Quantity: 1
  • Joint Electronics Type Designation System Item Type Number: RT-556/APX-46
  • Receiver Band Quantity: 1
  • Power Output: 500.000 WATTS MAXIMUM
  • Input Frequency Rating: 1.020 GIGAHERTZ MINIMUM AND 1.040 GIGAHERTZ MAXIMUM
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Receiver-Transmitter,radio, cataloged under National Stock Number 5821-00-814-6979, is classified within Federal Supply Class 5821 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Joint Electronics Type Designation System. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5821-00-814-6979
Primary Part NumberRT556APX46
Item NameReceiver-Transmitter,radio
FSC / FSG5821 / 58 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusACTIVE
Transmitter Channel Quantity3
Frequency Rating400.0 HERTZ NOMINAL FIRST OPERATING POWER RQMT
Transmitter Band Quantity1
Joint Electronics Type Designation System Item Type NumberRT-556/APX-46
Receiver Band Quantity1
Power Output500.000 WATTS MAXIMUM
Input Frequency Rating1.020 GIGAHERTZ MINIMUM AND 1.040 GIGAHERTZ MAXIMUM
Receiver Emission TypeP1
PhaseSINGLE FIRST OPERATING POWER RQMT
Joint Electronics Type Designation System Item NameRECEIVER-TRANSMITTER,RADIO
AC Voltage Rating115.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
Transmitter Emission TypeP1
DC Voltage Rating28.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
Output Frequency Rating1.075 GIGAHERTZ MINIMUM AND 1.105 GIGAHERTZ MAXIMUM
Receiver Channel Quantity3
FSC Application DataTRANSPONDER SET,IDENTIFICATION,AIRBORNE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5945-00-240-6193 INTERCHANGEABLE
Relay,electromagnetic
5950-00-724-6209 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
RT556APX46 PRIMARY Joint Electronics Type Designation System (USA)
101023-1 Bae Systems Information and Electronic Systems Integration Inc. (USA)
101023-01 Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
5945-00-240-6193INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5950-00-724-6209INTERCHANGEABLE
COIL,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 5821-00-814-6979?

NSN 5821-00-814-6979 is a Receiver-Transmitter,radio, manufactured by Joint Electronics Type Designation System, classified under FSC 5821 (No Item Name Available). Status: active.

What are the part numbers for NSN 5821-00-814-6979?

NSN 5821-00-814-6979 has 3 cross-referenced part numbers: RT556APX46 (Joint Electronics Type Designation System), 101023-1 (Bae Systems Information and Electronic Systems Integration Inc.), 101023-01 (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 5821-00-814-6979?

There are 2 known substitutes for 5821-00-814-6979: 5945-00-240-6193, 5950-00-724-6209. Verify interchangeability with system specifications before substitution.

What are the specifications of RT556APX46?

Key specifications for RT556APX46: Transmitter Channel Quantity: 3; Frequency Rating: 400.0 HERTZ NOMINAL FIRST OPERATING POWER RQMT; Transmitter Band Quantity: 1; Joint Electronics Type Designation System Item Type Number: RT-556/APX-46. 19 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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