PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204702Transformer,power

Tdk-Lambda Americas Inc. Div High Power Division · NSN 5950-00-945-8820 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-945-8820 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-945-8820. Primary manufacturer part number: 204702.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Voltage: 52.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Inclosure Type: OPEN
  • Body Width: 3.125 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-945-8820, 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 Tdk-Lambda Americas Inc. Div High Power Division. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-945-8820
Primary Part Number204702
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTdk-Lambda Americas Inc. Div High Power Division
StatusCANCELLED
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage52.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Inclosure TypeOPEN
Body Width3.125 INCHES NOMINAL IN
Body Length7.625 INCHES NOMINAL IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating47.0 HERTZ NOMINAL SINGLE COMPONENT
Terminal Type and Quantity7 TAB, SOLDER LUG
Winding Operating Voltage18.60 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length3.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height5.250 INCHES NOMINAL IN
Mounting Hole Diameter0.281 INCHES NOMINAL SINGLE GROUP IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5340-00-114-552081012 INTERCHANGEABLE
Wheel,solid,nonmetallic
Aerol Llc
5330-00-301-967281012 INTERCHANGEABLE
Packing,preformed
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
6930-00-373-958881012 INTERCHANGEABLE
Servo Assembly,wing
Cae Usa Inc.
3110-00-554-3450 INTERCHANGEABLE
Bearing,ball,annular
5970-00-768-7516CLASS 52-4 INTERCHANGEABLE
Insulator,suspension
American National Standards Institute Incorporated Dba American National Standards Institute
4820-00-821-802108101-2 INTERCHANGEABLE
Cock,poppet Drain
Parker Hannifin Corporation Div Aerospace Group Headquarters
3510-01-141-03412-4702 INTERCHANGEABLE
Push Button Kit
Maytag Corporation Dba Maytag Appliancessales
5999-01-432-0888 INTERCHANGEABLE
Plate,electrical Shield
5999-01-462-9846741007C00 INTERCHANGEABLE
Plate,electrical Shield
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
204702 PRIMARY Tdk-Lambda Americas Inc. Div High Power Division (USA)
81012 Tdk-Lambda Americas Inc. Div High Power Division (USA)
Related Parts
5340-00-114-5520INTERCHANGEABLE
WHEEL,SOLID,NONMETALLIC
81012
5330-00-301-9672INTERCHANGEABLE
PACKING,PREFORMED
81012
6930-00-373-9588INTERCHANGEABLE
SERVO ASSEMBLY,WING
81012
3110-00-554-3450INTERCHANGEABLE
BEARING,BALL,ANNULAR
5970-00-768-7516INTERCHANGEABLE
INSULATOR,SUSPENSION
CLASS 52-4
4820-00-821-8021INTERCHANGEABLE
COCK,POPPET DRAIN
08101-2
3510-01-141-0341INTERCHANGEABLE
PUSH BUTTON KIT
2-4702
5999-01-432-0888INTERCHANGEABLE
PLATE,ELECTRICAL SHIELD
5999-01-462-9846INTERCHANGEABLE
PLATE,ELECTRICAL SHIELD
741007C00

Frequently Asked Questions

What is NSN 5950-00-945-8820?

NSN 5950-00-945-8820 is a Transformer,power, manufactured by Tdk-Lambda Americas Inc. Div High Power Division, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-945-8820?

NSN 5950-00-945-8820 has 2 cross-referenced part numbers: 204702 (Tdk-Lambda Americas Inc. Div High Power Division), 81012 (Tdk-Lambda Americas Inc. Div High Power Division).

What NSN replaces 5950-00-945-8820?

There are 9 known substitutes for 5950-00-945-8820: 5340-00-114-5520, 5330-00-301-9672, 6930-00-373-9588 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 204702?

Key specifications for 204702: Reliability Indicator: NOT ESTABLISHED; Winding Operating Voltage: 52.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY; Center to Center Distance Between Mounting Facilities Parallel to Width: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Facility Quantity: 4 SINGLE GROUP. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-945-8820 still in active supply?

NSN 5950-00-945-8820 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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