PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M27/173-07Transformer,audio Frequency

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5950-01-158-1334 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-158-1334 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-158-1334. Primary manufacturer part number: M27/173-07.
Features
  • Transformer,audio Frequency — FSC 5950
  • Inclosure Type: FULLY INCLOSED
  • Body Width: 0.260 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Body Length: 0.260 INCHES NOMINAL IN
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • 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.).
  • Frequency Rating: 300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM 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 5950-01-158-1334, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-158-1334
Primary Part NumberM27/173-07
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
StatusACTIVE
Inclosure TypeFULLY INCLOSED
Body Width0.260 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Body Length0.260 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
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.).
Frequency Rating300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Terminal Type and Quantity7 WIRE LEAD
Maximum Transformer Power Rating1.0 MILLIWATTS SINGLE COMPONENT
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTERMINAL SINGLE GROUP
Body Height0.260 INCHES NOMINAL IN
Impedance Rating in Ohms150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Specification/standard Data81349-MIL-T-27/173 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-01-128-9950 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-146-7760 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-155-3787 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-187-1713 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-259-8499 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-264-1859 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-265-1675 INTERCHANGEABLE
Transformer,audio Frequency
Cross-Reference Index
Part NumberManufacturer
M27/173-07 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-T-27/173 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5950-01-128-9950INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-146-7760INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-155-3787INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-187-1713INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-259-8499INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-264-1859INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-265-1675INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY

Frequently Asked Questions

What is NSN 5950-01-158-1334?

NSN 5950-01-158-1334 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: active.

What are the part numbers for NSN 5950-01-158-1334?

NSN 5950-01-158-1334 has 2 cross-referenced part numbers: M27/173-07 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-T-27/173 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5950-01-158-1334?

There are 7 known substitutes for 5950-01-158-1334: 5950-01-128-9950, 5950-01-146-7760, 5950-01-155-3787 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M27/173-07?

Key specifications for M27/173-07: Inclosure Type: FULLY INCLOSED; Body Width: 0.260 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Body Length: 0.260 INCHES NOMINAL IN. 14 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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