PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25P228032-01Transformer,power

Herley Chicago Dba Stewart Warner Electronics · NSN 5950-01-141-9121 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-141-9121 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-141-9121. Primary manufacturer part number: 25P228032-01.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: 10.5 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
  • Nominal Thread Size: 0.190 INCHES SINGLE GROUP IN
  • Winding Operating Voltage: 101.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Winding Operating Current: 50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 5.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Transformer Winding Connection Type: DELTA-WYE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-141-9121, 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 Herley Chicago Dba Stewart Warner Electronics. Government technical data includes 25 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-141-9121
Primary Part Number25P228032-01
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerHerley Chicago Dba Stewart Warner Electronics
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current10.5 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Winding Operating Voltage101.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length5.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Transformer Winding Connection TypeDELTA-WYE
Winding Operating Current10.5 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Function and Quantity1 PRIMARY AND 8 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage6.54 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Winding Operating Current1.0 AMPERES DC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage16.40 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Voltage208.00 AC VOLTS NOMINAL AND 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNF SINGLE GROUP
Body Length7.380 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width3.990 INCHES MINIMUM AND 4.010 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width3.380 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN
Body Height4.880 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
Terminal Type and Quantity31 WIRE LEAD
Frequency Rating48.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage6.54 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-006-2944252541-2 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
5133-00-189-9246 INTERCHANGEABLE
Drill,twist
5315-00-198-5981MS24692-283 INTERCHANGEABLE
Pin,tapered,plain
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5133-00-228-1326 INTERCHANGEABLE
Drill,twist
5325-00-285-21131220-1 INTERCHANGEABLE
Ring,retaining
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5330-00-286-6859 INTERCHANGEABLE
Seal,plain Encased
2910-00-306-5342149-1784 INTERCHANGEABLE
Pump,fuel,cam Actuated
Cummins Power Generation Inc.
5950-00-538-3336948733 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
1650-00-696-6190A6573 INTERCHANGEABLE
Plunger,detent
Aerocontrolex Group, Inc. Div Talley Actuators
5975-00-702-2149 INTERCHANGEABLE
Bushing,electrical Conduit
Cross-Reference Index
Part NumberManufacturer
12201 Transformer Technicians Inc (USA)
25P228032-01 PRIMARY Herley Chicago Dba Stewart Warner Electronics (USA)
25P228032-01 Outsource Electronics Manufacturing, Inc. Dba Outsource Electronics Manufacturing Inc (USA)
TTI-12201 Transformer Technicians Inc (USA)
6573 Precision Electronics, Inc (USA)
43715 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
Related Parts
5935-00-006-2944INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
252541-2
5133-00-189-9246INTERCHANGEABLE
DRILL,TWIST
5315-00-198-5981INTERCHANGEABLE
PIN,TAPERED,PLAIN
MS24692-283
5133-00-228-1326INTERCHANGEABLE
DRILL,TWIST
5325-00-285-2113INTERCHANGEABLE
RING,RETAINING
1220-1
5330-00-286-6859INTERCHANGEABLE
SEAL,PLAIN ENCASED
2910-00-306-5342INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
149-1784
5950-00-538-3336INTERCHANGEABLE
TRANSFORMER,POWER
948733
1650-00-696-6190INTERCHANGEABLE
PLUNGER,DETENT
A6573
5975-00-702-2149INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
4730-00-808-0524INTERCHANGEABLE
NUT,TUBE COUPLING
6625-00-833-1144INTERCHANGEABLE
METER,ARBITRARY SCALE
10177396

Frequently Asked Questions

What is NSN 5950-01-141-9121?

NSN 5950-01-141-9121 is a Transformer,power, manufactured by Herley Chicago Dba Stewart Warner Electronics, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-141-9121?

NSN 5950-01-141-9121 has 6 cross-referenced part numbers: 12201 (Transformer Technicians Inc), 25P228032-01 (Herley Chicago Dba Stewart Warner Electronics), 25P228032-01 (Outsource Electronics Manufacturing, Inc. Dba Outsource Electronics Manufacturing Inc), TTI-12201 (Transformer Technicians Inc), 6573 (Precision Electronics, Inc) and 1 more.

What NSN replaces 5950-01-141-9121?

There are 12 known substitutes for 5950-01-141-9121: 5935-00-006-2944, 5133-00-189-9246, 5315-00-198-5981 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25P228032-01?

Key specifications for 25P228032-01: Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: 10.5 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY; Nominal Thread Size: 0.190 INCHES SINGLE GROUP IN; Winding Operating Voltage: 101.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY. 26 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