PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-27/2Transformer,audio Frequency

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5950-01-241-9850 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-241-9850 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-241-9850. Primary manufacturer part number: MIL-T-27/2.
Features
  • Transformer,audio Frequency — FSC 5950
  • Maximum Transformer Power Rating: 2.0 WATTS SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 4 STANDOFF, SOLDER LUG
  • Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Outside Diameter: 1.332 INCHES MAXIMUM IN
  • Test Data Document: 81349-MIL-PRF-27/2 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 Type: FULLY INCLOSED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-241-9850, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 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
NSN5950-01-241-9850
Primary Part NumberMIL-T-27/2
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
Maximum Transformer Power Rating2.0 WATTS SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity4 STANDOFF, SOLDER LUG
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Outside Diameter1.332 INCHES MAXIMUM IN
Test Data Document81349-MIL-PRF-27/2 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
Maximum Operating Temp130.0 CELSIUS DEGC
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Impedance Rating in Ohms8.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Distance Between Mounting Facility Centers1.593 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Specification/standard Data81349-MIL-T-27/2 GOVERNMENT SPECIFICATION
Mounting Hole Diameter0.150 INCHES NOMINAL SINGLE GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Frequency Rating250.0 HERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5950-00-069-689461038 INTERCHANGEABLE
Transformer,audio Frequency
Dynalec Corporation
5950-01-279-809061709-009 INTERCHANGEABLE
Transformer,audio Frequency
Dynalec Corporation
Cross-Reference Index
Part NumberManufacturer
MIL-T-27/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-27/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M27/2-01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
TF4S1YY Microtran Co Inc (USA)
M27/2-02 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
TF4S21YY Microtran Co Inc (USA)
Related Parts
5950-00-069-6894INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
61038
5950-01-279-8090INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
61709-009

Frequently Asked Questions

What is NSN 5950-01-241-9850?

NSN 5950-01-241-9850 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 5950-01-241-9850?

NSN 5950-01-241-9850 has 6 cross-referenced part numbers: MIL-T-27/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-27/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M27/2-01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), TF4S1YY (Microtran Co Inc), M27/2-02 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5950-01-241-9850?

There are 2 known substitutes for 5950-01-241-9850: 5950-00-069-6894, 5950-01-279-8090. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-27/2?

Key specifications for MIL-T-27/2: Maximum Transformer Power Rating: 2.0 WATTS SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 4 STANDOFF, SOLDER LUG; Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-01-241-9850 still in active supply?

NSN 5950-01-241-9850 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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