PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-27/197Transformer,audio Frequency

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5950-01-104-7114 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-104-7114 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-104-7114. Primary manufacturer part number: MIL-T-27/197.
Features
  • Transformer,audio Frequency — FSC 5950
  • Body Length: 1.625 INCHES NOMINAL IN
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Impedance Rating in Ohms: 15000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Hole Diameter: 0.144 INCHES NOMINAL SINGLE GROUP IN
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Frequency Rating: 100.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Impedance Rating in Ohms: 80000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-104-7114, is classified within Federal Supply Class 5950 (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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5950-01-104-7114
Primary Part NumberMIL-T-27/197
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Body Length1.625 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Impedance Rating in Ohms15000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting Hole Diameter0.144 INCHES NOMINAL SINGLE GROUP IN
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Frequency Rating100.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms80000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Specification/standard Data81349-MIL-T-27/197 GOVERNMENT SPECIFICATION
Center to Center Distance Between Mounting Facilities Parallel to Length1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width1.625 INCHES MAXIMUM IN
Test Data Document81349-MIL-T-27 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.).
Inclosure TypeFULLY INCLOSED
Terminal Type and Quantity6 SOLDER STUD
Body Height2.250 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Transformer Power Rating200.0 MILLIWATTS SINGLE COMPONENT
Winding Operating Current8.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5910-00-196-1090H2-1 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Standex Electrics Underwood Electricand Mfg Co. Div.
5999-00-252-4691H21 INTERCHANGEABLE
Heater,thermal Release
Siemens Energy and Automation Inc Siemens Furnas Controls Div
3455-01-050-0982 INTERCHANGEABLE
File,rotary
5999-01-056-6418FH21 INTERCHANGEABLE
Heater,thermal Release
Eaton Corporation Dba Eaton Inoac
5950-01-102-7706 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-104-4413 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-104-4415 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-104-4443 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-111-0158 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-140-7127 INTERCHANGEABLE
Transformer,audio Frequency
Cross-Reference Index
Part NumberManufacturer
MIL-T-27/197 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M27/197-01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
H21 Magnetika Inc (USA)
H21 United Transformer Corp Sub of Opt Industries Inc (USA)
Related Parts
5910-00-196-1090INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
H2-1
5999-00-252-4691INTERCHANGEABLE
HEATER,THERMAL RELEASE
H21
3455-01-050-0982INTERCHANGEABLE
FILE,ROTARY
5999-01-056-6418INTERCHANGEABLE
HEATER,THERMAL RELEASE
FH21
5950-01-102-7706INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-104-4413INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-104-4415INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-104-4443INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-111-0158INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-140-7127INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-146-7763INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-260-7498INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY

Frequently Asked Questions

What is NSN 5950-01-104-7114?

NSN 5950-01-104-7114 is a Transformer,audio Frequency, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-01-104-7114?

NSN 5950-01-104-7114 has 4 cross-referenced part numbers: MIL-T-27/197 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M27/197-01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), H21 (Magnetika Inc), H21 (United Transformer Corp Sub of Opt Industries Inc).

What NSN replaces 5950-01-104-7114?

There are 12 known substitutes for 5950-01-104-7114: 5910-00-196-1090, 5999-00-252-4691, 3455-01-050-0982 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-27/197?

Key specifications for MIL-T-27/197: Body Length: 1.625 INCHES NOMINAL IN; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Impedance Rating in Ohms: 15000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Mounting Hole Diameter: 0.144 INCHES NOMINAL SINGLE GROUP IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-01-104-7114 still in active supply?

NSN 5950-01-104-7114 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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