PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-83720/8Transformer,power

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5950-00-142-5718 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-142-5718 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-142-5718. Primary manufacturer part number: MIL-T-83720/8.
Features
  • Transformer,power — FSC 5950
  • Inclosure Type: OPEN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Voltage: 112.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 117.60 AC VOLTS NOMINAL AND 118.00 AC VOLTS NOMINAL AND 120.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Method: THREADED HOLE(S) 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 5950-00-142-5718, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-142-5718
Primary Part NumberMIL-T-83720/8
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
StatusACTIVE
Inclosure TypeOPEN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage112.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 117.60 AC VOLTS NOMINAL AND 118.00 AC VOLTS NOMINAL AND 120.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Frequency Rating380.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Voltage6.00 AC KILOVOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Terminal Type and Quantity10 TAB, SOLDER LUG
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Current120.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Test Data Document81349-MIL-T-83720/8 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.).
Center to Center Distance Between Mounting Facilities Parallel to Width1.906 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-00-646-5525624673 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Div Rms - Mitchel Field
Cross-Reference Index
Part NumberManufacturer
MIL-T-83720/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ST28763 Sterling Transformer Corp (USA)
1790753 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
624673 Northrop Grumman Systems Corporation (USA)
M83720/8-01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
59T11C1841 Omega Associates, Inc. Dba Omega Associates Inc (USA)
Related Parts
5950-00-646-5525INTERCHANGEABLE
TRANSFORMER,POWER
624673

Frequently Asked Questions

What is NSN 5950-00-142-5718?

NSN 5950-00-142-5718 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: active.

What are the part numbers for NSN 5950-00-142-5718?

NSN 5950-00-142-5718 has 6 cross-referenced part numbers: MIL-T-83720/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ST28763 (Sterling Transformer Corp), 1790753 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 624673 (Northrop Grumman Systems Corporation), M83720/8-01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5950-00-142-5718?

There is 1 known substitute for 5950-00-142-5718: 5950-00-646-5525. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-83720/8?

Key specifications for MIL-T-83720/8: Inclosure Type: OPEN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Facility Quantity: 4 SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT. 21 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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