PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M-66/UMicrophone,dynamic

Joint Electronics Type Designation System · NSN 5965-00-170-4793 · FSC 5965 · No Item Name Available
Verified by PartsTable
NSN 5965-00-170-4793 — this item is cataloged by the U.S. Government under National Stock Number 5965-00-170-4793. Primary manufacturer part number: M-66/U.
Features
  • Microphone,dynamic — FSC 5965
  • Body Style: STAND TYPE W/ OR W/O STAND
  • Diameter: 5.500 INCHES NOMINAL IN
  • Impedance Rating: 500.0 OHMS NOMINAL
  • Impedance Selection Method: INTEGRAL SWITCH
  • Polarity Connection: NOT REQUIRED
  • Length: 12.000 INCHES NOMINAL IN
  • Cable Conductor Quantity: 3
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microphone,dynamic, cataloged under National Stock Number 5965-00-170-4793, is classified within Federal Supply Class 5965 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Joint Electronics Type Designation System. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5965-00-170-4793
Primary Part NumberM-66/U
Item NameMicrophone,dynamic
FSC / FSG5965 / 59 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusCANCELLED
Body StyleSTAND TYPE W/ OR W/O STAND
Diameter5.500 INCHES NOMINAL IN
Impedance Rating500.0 OHMS NOMINAL
Impedance Selection MethodINTEGRAL SWITCH
Polarity ConnectionNOT REQUIRED
Length12.000 INCHES NOMINAL IN
Cable Conductor Quantity3
Frequency Response Range in Hertz+50.0 TO 7000.0
Support Stand Height8.250 INCHES NOMINAL IN
Switch TypePUSH
Cable Shielded Conductor Quantity2
Output Sensitivity Rating in Decibels-48.0
Extended Cable Length5.0 FEET NOMINAL FT
Sound Pickup Directional TypeSEMIDIRECTIONAL
Accessory ComponentsCONNECTOR
Electrical Connection TypeINTEGRAL CABLE
FSC Application DataHEADSETS,HANDSETS,MICROPHONES AND SPEAKERS
Mounting MethodTHREADED BUSHING
Output Sensitivity Rating Reference20 DYNES PER SQ CENTIMETER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5905-00-107-897212Z13110-695 INTERCHANGEABLE
Resistor,adjustable
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3020-00-254-49150362 INTERCHANGEABLE
Chain,roller
Rexnord Holdings Inc
5133-00-255-4077 INTERCHANGEABLE
Countersink
5930-01-373-940446251 INTERCHANGEABLE
Switch,pressure
Tyco Fire Products Lp
5975-01-480-28150362 INTERCHANGEABLE
Box Connector,electrical
Better Engineering Manufacturing Inc
6515-01-517-64330362 INTERCHANGEABLE
Implant,ossicular,otological
Medtronics Xomed Surgical Products Inc Dba Medtronics Xomed
4820-01-627-962046-251 INTERCHANGEABLE
Valve,flow Control
Quest Engineering Inc
Cross-Reference Index
Part NumberManufacturer
46251WITHSTAND46250 Thales Usa, Inc. Div Air Mobility Solutions ("ams") (USA)
UGDN500 Astatic Corp the (USA)
M0DELDN500 Astatic Corp the (USA)
DN500WITHSTAND Astatic Corp the (USA)
UG10DAL500 Astatic Corp the (USA)
M-66/U PRIMARY Joint Electronics Type Designation System (USA)
0-362 Astatic Corp the (USA)
46251 Thales Usa, Inc. Div Air Mobility Solutions ("ams") (USA)
Related Parts
5905-00-107-8972INTERCHANGEABLE
RESISTOR,ADJUSTABLE
12Z13110-695
3020-00-254-4915INTERCHANGEABLE
CHAIN,ROLLER
0362
5133-00-255-4077INTERCHANGEABLE
COUNTERSINK
5930-01-373-9404INTERCHANGEABLE
SWITCH,PRESSURE
46251
5975-01-480-2815INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
0362
6515-01-517-6433INTERCHANGEABLE
IMPLANT,OSSICULAR,OTOLOGICAL
0362
4820-01-627-9620INTERCHANGEABLE
VALVE,FLOW CONTROL
46-251

Frequently Asked Questions

What is NSN 5965-00-170-4793?

NSN 5965-00-170-4793 is a Microphone,dynamic, manufactured by Joint Electronics Type Designation System, classified under FSC 5965 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5965-00-170-4793?

NSN 5965-00-170-4793 has 8 cross-referenced part numbers: 46251WITHSTAND46250 (Thales Usa, Inc. Div Air Mobility Solutions ("ams")), UGDN500 (Astatic Corp the), M0DELDN500 (Astatic Corp the), DN500WITHSTAND (Astatic Corp the), UG10DAL500 (Astatic Corp the) and 3 more.

What NSN replaces 5965-00-170-4793?

There are 7 known substitutes for 5965-00-170-4793: 5905-00-107-8972, 3020-00-254-4915, 5133-00-255-4077 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M-66/U?

Key specifications for M-66/U: Body Style: STAND TYPE W/ OR W/O STAND; Diameter: 5.500 INCHES NOMINAL IN; Impedance Rating: 500.0 OHMS NOMINAL; Impedance Selection Method: INTEGRAL SWITCH. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5965-00-170-4793 still in active supply?

NSN 5965-00-170-4793 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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