PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MT66ARC5Mounting

Joint Electronics Type Designation System · NSN 5821-00-369-6726 · FSC 5821 · No Item Name Available
Verified by PartsTable
NSN 5821-00-369-6726 — this item is cataloged by the U.S. Government under National Stock Number 5821-00-369-6726. Primary manufacturer part number: MT66ARC5.
Features
  • Mounting — FSC 5821
  • FSC Application Data: RADIO AND TELEVISION COMMUNICATION EQUIPMENT,AIRBORNE
  • 6 verified cross-references
  • Primary manufacturer: Joint Electronics Type Designation System
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mounting, cataloged under National Stock Number 5821-00-369-6726, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5821-00-369-6726
Primary Part NumberMT66ARC5
Item NameMounting
FSC / FSG5821 / 58 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusACTIVE
FSC Application DataRADIO AND TELEVISION COMMUNICATION EQUIPMENT,AIRBORNE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5960-00-188-6593 INTERCHANGEABLE
Electron Tube
4730-00-274-7406488290 INTERCHANGEABLE
Clamp,hose
Stewart-Warner Corporation
5960-00-284-4353 INTERCHANGEABLE
Shield,electron Tube
5120-00-293-0142TE0142 INTERCHANGEABLE
Wrench,socket
Timber Edge Machine Inc.
5950-00-351-5194BA111306 INTERCHANGEABLE
Transformer,audio Frequency
Lucent Technologies Inc Corporate Headquarters
5340-00-369-74335696 INTERCHANGEABLE
Latch,rim
Eastern Co Div Eberhard Manufacturing
5330-00-506-01675698 INTERCHANGEABLE
Gasket
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5960-00-608-0958 INTERCHANGEABLE
Electron Tube
5960-00-617-8677 INTERCHANGEABLE
Electron Tube
5325-00-793-63124S2RW INTERCHANGEABLE
Eyelet,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
Cross-Reference Index
Part NumberManufacturer
MT66ARC5 PRIMARY Joint Electronics Type Designation System (USA)
5696 Cessna Aircraft Co Arc Avionics Div (USA)
278A PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
A5696 Autodyne Manufacturing Co Inc (USA)
46112 PRIMARY Naval Ship Systems Command (USA)
5696-2B Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
5960-00-188-6593INTERCHANGEABLE
ELECTRON TUBE
4730-00-274-7406INTERCHANGEABLE
CLAMP,HOSE
488290
5960-00-284-4353INTERCHANGEABLE
SHIELD,ELECTRON TUBE
5120-00-293-0142INTERCHANGEABLE
WRENCH,SOCKET
TE0142
5950-00-351-5194INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
BA111306
5340-00-369-7433INTERCHANGEABLE
LATCH,RIM
5696
5330-00-506-0167INTERCHANGEABLE
GASKET
5698
5960-00-608-0958INTERCHANGEABLE
ELECTRON TUBE
5960-00-617-8677INTERCHANGEABLE
ELECTRON TUBE
5325-00-793-6312INTERCHANGEABLE
EYELET,TURNLOCK FASTENER
4S2RW
2920-00-999-5621INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
46-112
6515-01-082-8455INTERCHANGEABLE
SYRINGE,HYPODERMIC
BD309579

Frequently Asked Questions

What is NSN 5821-00-369-6726?

NSN 5821-00-369-6726 is a Mounting, manufactured by Joint Electronics Type Designation System, classified under FSC 5821 (No Item Name Available). Status: active.

What are the part numbers for NSN 5821-00-369-6726?

NSN 5821-00-369-6726 has 6 cross-referenced part numbers: MT66ARC5 (Joint Electronics Type Designation System), 5696 (Cessna Aircraft Co Arc Avionics Div), 278A (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), A5696 (Autodyne Manufacturing Co Inc), 46112 (Naval Ship Systems Command) and 1 more.

What NSN replaces 5821-00-369-6726?

There are 12 known substitutes for 5821-00-369-6726: 5960-00-188-6593, 4730-00-274-7406, 5960-00-284-4353 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MT66ARC5?

Key specifications for MT66ARC5: FSC Application Data: RADIO AND TELEVISION COMMUNICATION EQUIPMENT,AIRBORNE. 1 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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