PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-H-12576Headset-Microphone

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5965-00-669-6871 · FSC 5965 · No Item Name Available
Verified by PartsTable
NSN 5965-00-669-6871 — this item is cataloged by the U.S. Government under National Stock Number 5965-00-669-6871. Primary manufacturer part number: MIL-H-12576.
Features
  • Headset-Microphone — FSC 5965
  • Earphone Controlling Agency: ROANWELL CORP
  • Earphone Identifying Number: 10027 /5965-296-4044/ DRAWING NO.
  • Test Data Document: 81349-MIL-H-12576 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Connector Identifying Number: U-161/U TYPE NO.
  • Connector Name: PLUG
  • DC Resistance Rating in Ohms: 20.0 NOMINAL
  • Earphone Quantity: 1
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Headset-Microphone, cataloged under National Stock Number 5965-00-669-6871, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 20 verified specifications, 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: Cancelled.

Technical Specifications
ParameterValue
NSN5965-00-669-6871
Primary Part NumberMIL-H-12576
Item NameHeadset-Microphone
FSC / FSG5965 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Earphone Controlling AgencyROANWELL CORP
Earphone Identifying Number10027 /5965-296-4044/ DRAWING NO.
Test Data Document81349-MIL-H-12576 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Connector Identifying NumberU-161/U TYPE NO.
Connector NamePLUG
DC Resistance Rating in Ohms20.0 NOMINAL
Earphone Quantity1
Operating Current Rating60.0 MILLIAMPERES NOMINAL
Identifying Number10037 DRAWING NO.
Controlling AgencyROANWELL CORP
Impedance Rating25.0 OHMS NOMINAL
Earphone Element TypeMAGNETIC
Frequency Rating0.3 KILOHERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM
Connector Controlling AgencyJETDS
Mounting MethodSUSPENDED ON ADJUSTABLE HEADBAND EARPHONE
Connector to Junction Cord Length5.000 FEET FT
Microphone Element TypeCARBON
Microphone Mounting FacilitySUSPENDED ON ADJUSTABLE BOOM SECURED AT RECEIVER
Output Level Rating35 DB ABOVE 1 MV DB
Earphone Impedance Rating275.0 OHMS NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-014-6487BJ20 INTERCHANGEABLE
Connector,receptacle,electrical
Trompeter Electronics, Inc.
6695-00-070-3662M9070-26 INTERCHANGEABLE
Meter Movement
American Instrument Corp
5905-00-106-9344 INTERCHANGEABLE
Resistor,fixed,composition
5965-00-309-4814H91U INTERCHANGEABLE
Handset Headset
Joint Electronics Type Designation System
3120-00-343-654214227P INTERCHANGEABLE
Bushing,sleeve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5962-00-428-6377 INTERCHANGEABLE
Microcircuit,digital
5965-00-509-9926 INTERCHANGEABLE
Headset-Microphone
6240-00-660-8467129-001-0011 INTERCHANGEABLE
Lamp,incandescent
Northrop Grumman Systems Corporation
5965-00-682-2769 INTERCHANGEABLE
Headset-Microphone
5136-00-821-1026 INTERCHANGEABLE
Tap,thread Cutting
Cross-Reference Index
Part NumberManufacturer
MIL-H-12576 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
H-91/U Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1491 Audiosears Corp Dba Audiosears Corp (USA)
H91AU Joint Electronics Type Designation System (USA)
SC-DL-134001 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
10127 Roanwell, Llc (USA)
Related Parts
5935-00-014-6487INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
BJ20
6695-00-070-3662INTERCHANGEABLE
METER MOVEMENT
M9070-26
5905-00-106-9344INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5965-00-309-4814INTERCHANGEABLE
HANDSET HEADSET
H91U
3120-00-343-6542INTERCHANGEABLE
BUSHING,SLEEVE
14227P
5962-00-428-6377INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5965-00-509-9926INTERCHANGEABLE
HEADSET-MICROPHONE
6240-00-660-8467INTERCHANGEABLE
LAMP,INCANDESCENT
129-001-0011
5965-00-682-2769INTERCHANGEABLE
HEADSET-MICROPHONE
5136-00-821-1026INTERCHANGEABLE
TAP,THREAD CUTTING
5330-01-109-7371INTERCHANGEABLE
PACKING,PREFORMED
101-27
9905-01-113-4664INTERCHANGEABLE
PLATE,INSTRUCTION

Frequently Asked Questions

What is NSN 5965-00-669-6871?

NSN 5965-00-669-6871 is a Headset-Microphone, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5965 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5965-00-669-6871?

NSN 5965-00-669-6871 has 6 cross-referenced part numbers: MIL-H-12576 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), H-91/U (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1491 (Audiosears Corp Dba Audiosears Corp), H91AU (Joint Electronics Type Designation System), SC-DL-134001 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir) and 1 more.

What NSN replaces 5965-00-669-6871?

There are 12 known substitutes for 5965-00-669-6871: 5935-00-014-6487, 6695-00-070-3662, 5905-00-106-9344 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-H-12576?

Key specifications for MIL-H-12576: Earphone Controlling Agency: ROANWELL CORP; Earphone Identifying Number: 10027 /5965-296-4044/ DRAWING NO.; Test Data Document: 81349-MIL-H-12576 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Connector Identifying Number: U-161/U TYPE NO.. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5965-00-669-6871 still in active supply?

NSN 5965-00-669-6871 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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