PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D0-T20Transformer,audio Frequency

United Transformer Corp Sub of Opt Industries Inc · NSN 5950-01-104-7124 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-104-7124 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-104-7124. Primary manufacturer part number: D0-T20.
Features
  • Transformer,audio Frequency — FSC 5950
  • Terminal Type and Quantity: 5 WIRE LEAD
  • Winding Operating Current: 5.5 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Test Data Document: 81349-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.).
  • Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Impedance Rating in Ohms: 500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Length: 0.469 INCHES MAXIMUM IN
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-104-7124, 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 United Transformer Corp Sub of Opt Industries Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-01-104-7124
Primary Part NumberD0-T20
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUnited Transformer Corp Sub of Opt Industries Inc
StatusCANCELLED
Terminal Type and Quantity5 WIRE LEAD
Winding Operating Current5.5 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
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.).
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Impedance Rating in Ohms500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length0.469 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodTERMINAL SINGLE GROUP
Maximum Operating Temp105.0 CELSIUS DEGC
Frequency Rating300.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Body Outside Diameter0.344 INCHES MAXIMUM IN
Inclosure TypeFULLY INCLOSED
Specification/standard Data81349-MIL-T-27/172 GOVERNMENT SPECIFICATION
Maximum Transformer Power Rating500.0 MILLIWATTS SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5950-00-480-6664D0T20 INTERCHANGEABLE
Transformer,power
Magnetika Inc
5950-00-755-4163D0T20 INTERCHANGEABLE
Transformer,audio Frequency
Magnetika Inc
Cross-Reference Index
Part NumberManufacturer
D0-T20 United Transformer Corp Sub of Opt Industries Inc (USA)
MIL-PRF-27/172 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M27/172-12 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
M27/172-12 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
D0-T20 Raytheon Company Div Corp (USA)
MIL-T-27/172 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5950-00-480-6664INTERCHANGEABLE
TRANSFORMER,POWER
D0T20
5950-00-755-4163INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
D0T20

Frequently Asked Questions

What is NSN 5950-01-104-7124?

NSN 5950-01-104-7124 is a Transformer,audio Frequency, manufactured by United Transformer Corp Sub of Opt Industries Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-01-104-7124?

NSN 5950-01-104-7124 has 6 cross-referenced part numbers: D0-T20 (United Transformer Corp Sub of Opt Industries Inc), MIL-PRF-27/172 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M27/172-12 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), M27/172-12 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), D0-T20 (Raytheon Company Div Corp) and 1 more.

What NSN replaces 5950-01-104-7124?

There are 2 known substitutes for 5950-01-104-7124: 5950-00-480-6664, 5950-00-755-4163. Verify interchangeability with system specifications before substitution.

What are the specifications of D0-T20?

Key specifications for D0-T20: Terminal Type and Quantity: 5 WIRE LEAD; Winding Operating Current: 5.5 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Test Data Document: 81349-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.).; Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-01-104-7124 still in active supply?

NSN 5950-01-104-7124 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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