PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H-925Transformer,power

United Transformer Corp Sub of Opt Industries Inc · NSN 5950-01-229-2577 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-229-2577 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-229-2577. Primary manufacturer part number: H-925.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Specification/standard Data: 81349-MIL-T-27/156 GOVERNMENT SPECIFICATION
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Width: 1.625 INCHES NOMINAL IN
  • Winding Operating Voltage: 108.10 AC VOLTS NOMINAL AND 121.80 AC VOLTS NOMINAL AND 128.80 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-229-2577, 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 United Transformer Corp Sub of Opt Industries Inc. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-229-2577
Primary Part NumberH-925
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUnited Transformer Corp Sub of Opt Industries Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Specification/standard Data81349-MIL-T-27/156 GOVERNMENT SPECIFICATION
Center to Center Distance Between Mounting Facilities Parallel to Length1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width1.625 INCHES NOMINAL IN
Winding Operating Voltage108.10 AC VOLTS NOMINAL AND 121.80 AC VOLTS NOMINAL AND 128.80 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height2.375 INCHES NOMINAL IN
Body Length1.625 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
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 Operating Current105.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage8.25 AC VOLTS NOMINAL AND 12.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Terminal Type and Quantity10 TAB, SOLDER LUG
Maximum Operating Temp130.0 CELSIUS DEGC
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Current120.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-052-85312666101-1 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5950-00-276-1278 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
H-925 United Transformer Corp Sub of Opt Industries Inc (USA)
M27-156 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
M27/156-01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M27/1 6-01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
8668256-1 Drs Technologies Canada Ltd (CAN)
H-925 Opt Industries Inc Div of Electronika Inc (USA)
5727203-17 Naval Sea Systems Command (USA)
MIL-T-27/156 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
8668256-1 Drs Technologies Canada Ltd (CAN)
H-925 Magnetika Inc Div Magnetika/phillipsburg Location (USA)
Related Parts
5950-00-052-8531INTERCHANGEABLE
TRANSFORMER,POWER
2666101-1
5950-00-276-1278INTERCHANGEABLE
TRANSFORMER,POWER

Frequently Asked Questions

What is NSN 5950-01-229-2577?

NSN 5950-01-229-2577 is a Transformer,power, manufactured by United Transformer Corp Sub of Opt Industries Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-229-2577?

NSN 5950-01-229-2577 has 10 cross-referenced part numbers: H-925 (United Transformer Corp Sub of Opt Industries Inc), M27-156 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), M27/156-01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M27/1 6-01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 8668256-1 (Drs Technologies Canada Ltd) and 5 more.

What NSN replaces 5950-01-229-2577?

There are 2 known substitutes for 5950-01-229-2577: 5950-00-052-8531, 5950-00-276-1278. Verify interchangeability with system specifications before substitution.

What are the specifications of H-925?

Key specifications for H-925: Reliability Indicator: NOT ESTABLISHED; Mounting Method: THREADED STUD(S) SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Specification/standard Data: 81349-MIL-T-27/156 GOVERNMENT SPECIFICATION. 22 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