PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T366AARCTransmitter,radio

Joint Electronics Type Designation System · NSN 5821-00-681-9779 · FSC 5821 · No Item Name Available
Verified by PartsTable
NSN 5821-00-681-9779 — this item is cataloged by the U.S. Government under National Stock Number 5821-00-681-9779. Primary manufacturer part number: T366AARC.
Features
  • Transmitter,radio — FSC 5821
  • FSC Application Data: RADIO SET,RADIO,EXCPET NAVIGATION AND HOME TYPES,AIRBORNE
  • Transmitter Emission Type: A3 AND A9
  • Output Frequency Rating: 116.000 MEGAHERTZ MINIMUM AND 132.000 MEGAHERTZ MAXIMUM
  • Joint Electronics Type Designation System Item Type Number: T-366/ARC
  • DC Voltage Rating: 28.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
  • Power Output: 2.000 WATTS NOMINAL
  • Transmitter Channel Quantity: 5
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transmitter,radio, cataloged under National Stock Number 5821-00-681-9779, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5821-00-681-9779
Primary Part NumberT366AARC
Item NameTransmitter,radio
FSC / FSG5821 / 58 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusCANCELLED
FSC Application DataRADIO SET,RADIO,EXCPET NAVIGATION AND HOME TYPES,AIRBORNE
Transmitter Emission TypeA3 AND A9
Output Frequency Rating116.000 MEGAHERTZ MINIMUM AND 132.000 MEGAHERTZ MAXIMUM
Joint Electronics Type Designation System Item Type NumberT-366/ARC
DC Voltage Rating28.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Power Output2.000 WATTS NOMINAL
Transmitter Channel Quantity5
Frequency Control TypeCRYSTAL
Joint Electronics Type Designation System Item NameTRANSMITTER,RADIO
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2915-00-048-6418B15840 INTERCHANGEABLE
Filter Element,fluid
Falls Filtration Technologies, Inc.
5961-00-052-428015840 INTERCHANGEABLE
Transistor
Emcore Corporation Div Concord Division
1430-00-056-4773HF15840 INTERCHANGEABLE
Seal,ring
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
6685-00-115-9602263359 INTERCHANGEABLE
Indicator,vacuum
Provision, Inc. Dba Provision Inc
9905-00-202-36390100A INTERCHANGEABLE
Reflector,indicating,clearance
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
5340-00-205-517315840 INTERCHANGEABLE
Catch,clamping
Emhart Industries Inc Corbin Cabinet Lock Hardware Div
5120-00-224-1372 INTERCHANGEABLE
Bar,pinch
3530-00-359-7740 INTERCHANGEABLE
Link
5950-00-405-5099T11A INTERCHANGEABLE
Transformer,audio Frequency
Marine Electric Systems Inc
6625-00-488-1731T26B INTERCHANGEABLE
Test Set Subassembly,electrical
Tel-Instrument Electronics Corp Div Tel-Instrument Electronics Corporation
Cross-Reference Index
Part NumberManufacturer
15840 Temperature Engineering Corp (USA)
15840TYPET11B28V0LTSM0DIFIED Cessna Aircraft Co Arc Avionics Div (USA)
T11A Joint Electronics Type Designation System (USA)
12409 Cessna Aircraft Co Arc Avionics Div (USA)
T366AARC PRIMARY Joint Electronics Type Designation System (USA)
Related Parts
2915-00-048-6418INTERCHANGEABLE
FILTER ELEMENT,FLUID
B15840
5961-00-052-4280INTERCHANGEABLE
TRANSISTOR
15840
1430-00-056-4773INTERCHANGEABLE
SEAL,RING
HF15840
6685-00-115-9602INTERCHANGEABLE
INDICATOR,VACUUM
263359
9905-00-202-3639INTERCHANGEABLE
REFLECTOR,INDICATING,CLEARANCE
0100A
5340-00-205-5173INTERCHANGEABLE
CATCH,CLAMPING
15840
5120-00-224-1372INTERCHANGEABLE
BAR,PINCH
3530-00-359-7740INTERCHANGEABLE
LINK
5950-00-405-5099INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
T11A
6625-00-488-1731INTERCHANGEABLE
TEST SET SUBASSEMBLY,ELECTRICAL
T26B
5821-00-503-3434INTERCHANGEABLE
TRANSMITTER,RADIO
T366ARC
2915-00-535-8909INTERCHANGEABLE
COVER
12409

Frequently Asked Questions

What is NSN 5821-00-681-9779?

NSN 5821-00-681-9779 is a Transmitter,radio, manufactured by Joint Electronics Type Designation System, classified under FSC 5821 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5821-00-681-9779?

NSN 5821-00-681-9779 has 5 cross-referenced part numbers: 15840 (Temperature Engineering Corp), 15840TYPET11B28V0LTSM0DIFIED (Cessna Aircraft Co Arc Avionics Div), T11A (Joint Electronics Type Designation System), 12409 (Cessna Aircraft Co Arc Avionics Div), T366AARC (Joint Electronics Type Designation System).

What NSN replaces 5821-00-681-9779?

There are 12 known substitutes for 5821-00-681-9779: 2915-00-048-6418, 5961-00-052-4280, 1430-00-056-4773 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T366AARC?

Key specifications for T366AARC: Special Features: 4.938 IN. BY 5.000 IN. BY 6.062 IN. O/A DIM.,PROVISIONS FOR INSERTION OF UP TO 5 CRYSTALS IN; FSC Application Data: RADIO SET,RADIO,EXCPET NAVIGATION AND HOME TYPES,AIRBORNE; Transmitter Emission Type: A3 AND A9; Output Frequency Rating: 116.000 MEGAHERTZ MINIMUM AND 132.000 MEGAHERTZ MAXIMUM. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5821-00-681-9779 still in active supply?

NSN 5821-00-681-9779 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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