PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43523Transformer,power

Freed Transformer Co · NSN 5950-00-463-8101 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-463-8101 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-463-8101. Primary manufacturer part number: 43523.
Features
  • Transformer,power — FSC 5950
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Winding Operating Voltage: 40.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Body Height: 3.875 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Body Length: 3.562 INCHES NOMINAL IN
  • Winding Operating Current: 1.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-463-8101, 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 Freed Transformer Co. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-00-463-8101
Primary Part Number43523
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Winding Operating Voltage40.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Body Height3.875 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Body Length3.562 INCHES NOMINAL IN
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating48.0 HERTZ MINIMUM AND 600.0 HERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Terminal Type and Quantity8 WIRE HOOK
Center to Center Distance Between Mounting Facilities Parallel to Width2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Body Width3.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-221-7960 INTERCHANGEABLE
Handle,socket Wrench
5950-00-470-9376 INTERCHANGEABLE
Transformer,power
1680-00-510-249943523 INTERCHANGEABLE
Gearbox Assembly,aircraft
Heligear Acquisition Co. Dba Northstar Aerospace, Inc.
6520-00-584-269988-0394 INTERCHANGEABLE
Elevator,periosteal
Boss Instruments, Limited Inc
5845-00-757-327243523 INTERCHANGEABLE
Board Assembly
L3harris Technologies, Inc.
2990-00-851-7388T-8434 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
6130-00-956-3963 INTERCHANGEABLE
Cover,power Supply
4820-01-150-3815220003 INTERCHANGEABLE
Tailpiece,recharging
Hydro-Test Products, Inc. Dba Hydro-Test Products Inc
5977-01-188-4589435-23 INTERCHANGEABLE
Electrode
Aqua-Chem, Inc. Dba Aqua-Chem Inc
5120-01-301-350543523 INTERCHANGEABLE
Removal Tool,seal C
Bourns Inc
Cross-Reference Index
Part NumberManufacturer
43523 Freed Transformer Co (USA)
220003 Trak Microwave Corp (USA)
Related Parts
5120-00-221-7960INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5950-00-470-9376INTERCHANGEABLE
TRANSFORMER,POWER
1680-00-510-2499INTERCHANGEABLE
GEARBOX ASSEMBLY,AIRCRAFT
43523
6520-00-584-2699INTERCHANGEABLE
ELEVATOR,PERIOSTEAL
88-0394
5845-00-757-3272INTERCHANGEABLE
BOARD ASSEMBLY
43523
2990-00-851-7388INTERCHANGEABLE
MUFFLER,EXHAUST
T-8434
6130-00-956-3963INTERCHANGEABLE
COVER,POWER SUPPLY
4820-01-150-3815INTERCHANGEABLE
TAILPIECE,RECHARGING
220003
5977-01-188-4589INTERCHANGEABLE
ELECTRODE
435-23
5120-01-301-3505INTERCHANGEABLE
REMOVAL TOOL,SEAL C
43523
8465-01-415-7447INTERCHANGEABLE
HEXENTRICS
6105-01-474-8399INTERCHANGEABLE
COVER,ELECTRIC MOTOR
20003

Frequently Asked Questions

What is NSN 5950-00-463-8101?

NSN 5950-00-463-8101 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-463-8101?

NSN 5950-00-463-8101 has 2 cross-referenced part numbers: 43523 (Freed Transformer Co), 220003 (Trak Microwave Corp).

What NSN replaces 5950-00-463-8101?

There are 12 known substitutes for 5950-00-463-8101: 5120-00-221-7960, 5950-00-470-9376, 1680-00-510-2499 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43523?

Key specifications for 43523: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Winding Operating Voltage: 40.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY; Body Height: 3.875 INCHES NOMINAL IN. 19 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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