PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M27/173-02Transformer,audio Frequency

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5950-01-146-7760 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-146-7760 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-146-7760. Primary manufacturer part number: M27/173-02.
Features
  • Transformer,audio Frequency — FSC 5950
  • Impedance Rating in Ohms: 1500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Impedance Rating in Ohms: 150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Frequency Rating: 300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Maximum Operating Temp: 105.0 CELSIUS DEGC
  • Mounting Method: TERMINAL SINGLE GROUP
  • Specification/standard Data: 81349-MIL-T-27/173 GOVERNMENT SPECIFICATION
  • Body Length: 0.260 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-146-7760, 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 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-146-7760
Primary Part NumberM27/173-02
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
Impedance Rating in Ohms1500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Impedance Rating in Ohms150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Frequency Rating300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Maximum Operating Temp105.0 CELSIUS DEGC
Mounting MethodTERMINAL SINGLE GROUP
Specification/standard Data81349-MIL-T-27/173 GOVERNMENT SPECIFICATION
Body Length0.260 INCHES NOMINAL IN
Body Outside Diameter0.260 INCHES NOMINAL 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 Quantity7 RIBBON
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Maximum Transformer Power Rating75.0 MILLIWATTS SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-018-8043D1T230 INTERCHANGEABLE
Transformer,audio Frequency
Magnetika Inc
5950-01-011-9266BIT-250-40 INTERCHANGEABLE
Transformer,audio Frequency
Magnetika Inc
5950-01-128-9950 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-155-3787 INTERCHANGEABLE
Transformer,audio Frequency
5950-01-158-1334 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
M27/173-02 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
MIL-PRF-27/173 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
BIT-250-40 United Transformer Corp Sub of Opt Industries Inc (USA)
TF5R21ZZ United Transformer Corp Sub of Opt Industries Inc (USA)
Related Parts
5950-00-018-8043INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
D1T230
5950-01-011-9266INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
BIT-250-40
5950-01-128-9950INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-155-3787INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-158-1334INTERCHANGEABLE
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 5950-01-146-7760?

NSN 5950-01-146-7760 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 5950-01-146-7760?

NSN 5950-01-146-7760 has 5 cross-referenced part numbers: M27/173-02 (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), MIL-PRF-27/173 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), BIT-250-40 (United Transformer Corp Sub of Opt Industries Inc), TF5R21ZZ (United Transformer Corp Sub of Opt Industries Inc).

What NSN replaces 5950-01-146-7760?

There are 9 known substitutes for 5950-01-146-7760: 5950-00-018-8043, 5950-01-011-9266, 5950-01-128-9950 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M27/173-02?

Key specifications for M27/173-02: Impedance Rating in Ohms: 1500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Impedance Rating in Ohms: 150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY; Frequency Rating: 300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT; Maximum Operating Temp: 105.0 CELSIUS DEGC. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com