PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILT27Transformer,power

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5950-00-581-8611 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-581-8611 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-581-8611. Primary manufacturer part number: MILT27.
Features
  • Transformer,power — FSC 5950
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Body Width: 2.375 INCHES NOMINAL IN
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: HERMETICALLY SEALED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-581-8611, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-581-8611
Primary Part NumberMILT27
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Body Width2.375 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeHERMETICALLY SEALED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Voltage250.00 AC VOLTS NOMINAL AND 600.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Terminal Type and Quantity7 PIN
Body Length2.750 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.).
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Body Height2.812 INCHES NOMINAL IN
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Frequency Rating50.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3030-01-045-2619B28-2 INTERCHANGEABLE
Belts,v,matched Set
Muviq Usa, Llc
4140-01-163-6009 INTERCHANGEABLE
Fan,tubeaxial
1670-01-530-3680B282 INTERCHANGEABLE
Canopy,personnel Parachute
North American Aerodynamics, Inc.
Cross-Reference Index
Part NumberManufacturer
MILT27 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
TF1A03GB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
B282 Pard Transformer Corp
Related Parts
3030-01-045-2619INTERCHANGEABLE
BELTS,V,MATCHED SET
B28-2
4140-01-163-6009INTERCHANGEABLE
FAN,TUBEAXIAL
1670-01-530-3680INTERCHANGEABLE
CANOPY,PERSONNEL PARACHUTE
B282

Frequently Asked Questions

What is NSN 5950-00-581-8611?

NSN 5950-00-581-8611 is a Transformer,power, 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 5950-00-581-8611?

NSN 5950-00-581-8611 has 3 cross-referenced part numbers: MILT27 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), TF1A03GB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B282 (Pard Transformer Corp).

What NSN replaces 5950-00-581-8611?

There are 3 known substitutes for 5950-00-581-8611: 3030-01-045-2619, 4140-01-163-6009, 1670-01-530-3680. Verify interchangeability with system specifications before substitution.

What are the specifications of MILT27?

Key specifications for MILT27: Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN; Mounting Facility Quantity: 4 SINGLE GROUP; Body Width: 2.375 INCHES NOMINAL IN; Mounting Method: THREADED STUD(S) SINGLE GROUP. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-581-8611 still in active supply?

NSN 5950-00-581-8611 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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